diff for duplicates of <20161101185611.GA1999@localhost.localdomain>

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diff for duplicates of <20161101185611.GA1999@localhost.localdomain>

diff --git a/a/1.txt b/N1/1.txt
index 628fa52..5fc2140 100644
--- a/a/1.txt
+++ b/N1/1.txt
@@ -1,1998 +1,4417 @@
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+Hi Rafael, Scott,
+
+
+First off, congrats on the set! It looks good so far.
+
+Just some small nits below since you have to respin it anyways :)
+
+On Mon, Oct 31, 2016@03:58:15PM -0600, Scott Bauer wrote:
+> This patch implements the necessary logic to bring an Opal
+> enabled drive out of a factory-enabled into a working
+> Opal state.
+> 
+> This patch set also enables logic to save a password to
+> be replayed during a resume from suspend. The key can be
+> saved in the driver or in the Kernel's Key managment.
+> 
+> Signed-off-by: Scott Bauer <scott.bauer at intel.com>
+> Signed-off-by: Rafael Antognolli <Rafael.Antognolli at intel.com>
+> ---
+>  lib/sed-opal.c          | 3337 +++++++++++++++++++++++++++++++++++++++++++++++
+>  lib/sed-opal_internal.h |  586 +++++++++
+>  lib/sed-opal_key.c      |   46 +
+>  lib/sed.c               |  303 +++++
+>  4 files changed, 4272 insertions(+)
+>  create mode 100644 lib/sed-opal.c
+>  create mode 100644 lib/sed-opal_internal.h
+>  create mode 100644 lib/sed-opal_key.c
+>  create mode 100644 lib/sed.c
+> 
+> diff --git a/lib/sed-opal.c b/lib/sed-opal.c
+> new file mode 100644
+> index 0000000..10b3348
+> --- /dev/null
+> +++ b/lib/sed-opal.c
+> @@ -0,0 +1,3337 @@
+> +/*
+> + * Copyright ? 2016 Intel Corporation
+> + *
+> + * Permission is hereby granted, free of charge, to any person obtaining a
+> + * copy of this software and associated documentation files (the "Software"),
+> + * to deal in the Software without restriction, including without limitation
+> + * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+> + * and/or sell copies of the Software, and to permit persons to whom the
+> + * Software is furnished to do so, subject to the following conditions:
+> + *
+> + * The above copyright notice and this permission notice (including the next
+> + * paragraph) shall be included in all copies or substantial portions of the
+> + * Software.
+> + *
+> + * 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.
+> + *
+> + * Authors:
+> + *    Rafael Antognolli <rafael.antognolli at intel.com>
+> + *    Scott  Bauer      <scott.bauer at intel.com>
+> + */
+> +
+> +#define pr_fmt(fmt) KBUILD_MODNAME ":OPAL: " fmt
+> +
+> +#include <linux/delay.h>
+> +#include <linux/device.h>
+> +#include <linux/kernel.h>
+> +#include <linux/list.h>
+> +#include <linux/genhd.h>
+> +#include <linux/slab.h>
+> +#include <linux/uaccess.h>
+> +#include <uapi/linux/sed-opal.h>
+> +#include <linux/sed.h>
+> +#include <linux/sed-opal.h>
+> +#include <linux/string.h>
+> +
+> +#include "sed-opal_internal.h"
+> +
+> +#define IO_BUFFER_LENGTH 2048
+> +
+> +#define MAX_TOKS 64
+> +
+> +struct opal_cmd {
+> +	struct block_device *bdev;
+> +	sec_cb *cb;
+> +	void *cb_data;
+> +
+> +	size_t pos;
+> +	u8 cmd_buf[IO_BUFFER_LENGTH * 2];
+> +	u8 resp_buf[IO_BUFFER_LENGTH * 2];
+> +	u8 *cmd;
+> +	u8 *resp;
+> +};
+> +
+> +/*
+> + * On the parsed response, we don't store again the toks that are already
+> + * stored in the response buffer. Instead, for each token, we just store a
+> + * pointer to the position in the buffer where the token starts, and the size
+> + * of the token in bytes.
+> + */
+> +struct opal_resp_tok {
+> +	const u8 *pos;
+> +	size_t len;
+> +	enum OPAL_RESPONSE_TOKEN type;
+> +	enum OPAL_ATOM_WIDTH width;
+> +	union {
+> +		u64 u;
+> +		s64 s;
+> +	} stored;
+> +};
+> +
+> +/*
+> + * From the response header it's not possible to know how many tokens there are
+> + * on the payload. So we hardcode that the maximum will be MAX_TOKS, and later
+> + * if we start dealing with messages that have more than that, we can increase
+> + * this number. This is done to avoid having to make two passes through the
+> + * response, the first one counting how many tokens we have and the second one
+> + * actually storing the positions.
+> + */
+> +struct parsed_resp {
+> +	int num;
+> +	struct opal_resp_tok toks[MAX_TOKS];
+> +};
+> +
+> +struct opal_dev;
+> +
+> +typedef void (*opal_cb)(int error, struct opal_dev *dev);
+> +
+> +typedef int (*opal_step)(struct opal_dev *dev);
+> +
+> +struct opal_completion {
+> +	struct completion cmd_completion;
+> +	int completion_status;
+> +};
+> +
+> +struct opal_dev {
+> +	struct block_device *bdev;
+> +	struct opal_completion *completion;
+> +	struct opal_lock_unlock lkul;
+> +	const opal_step *funcs;
+> +	void **func_data;
+> +	bool resume_from_suspend;
+> +	struct opal_suspend_unlk *resume_data;
+> +	size_t num_func_data;
+> +	atomic_t in_use;
+> +	sector_t start;
+> +	sector_t length;
+> +	u8 lr;
+> +	u8 key_type;
+> +	u8 key_name[OPAL_KEY_MAX];
+> +	size_t key_name_len;
+> +	u8 key[OPAL_KEY_MAX];
+> +	size_t key_len;
+> +	u16 comID;
+> +	u32 HSN;
+> +	u32 TSN;
+> +	u64 align;
+> +	u64 lowest_lba;
+> +	struct list_head node;
+> +	char disk_name[DISK_NAME_LEN];
+> +	int state;
+> +
+> +	struct opal_cmd cmd;
+> +	struct parsed_resp parsed;
+> +
+> +	size_t prev_d_len;
+> +	void *prev_data;
+> +
+> +	sec_cb *final_cb;
+> +	void *final_cb_data;
+> +	opal_step error_cb;
+> +	void *error_cb_data;
+> +	opal_cb oper_cb;
+> +};
+> +
+> +LIST_HEAD(opal_list);
+> +DEFINE_SPINLOCK(list_spinlock);
+> +
+> +static void print_buffer(const u8 *ptr, u32 length)
+> +{
+> +#ifdef DEBUG
+> +	print_hex_dump_bytes("OPAL: ", DUMP_PREFIX_OFFSET, ptr, length);
+> +	pr_debug("\n");
+> +#endif
+> +}
+> +
+> +#define TPER_SYNC_SUPPORTED BIT(0)
+> +
+> +static bool check_tper(const void *data)
+> +{
+> +	const struct d0_tper_features *tper = data;
+> +	u8 flags = tper->supported_features;
+> +
+> +	if (!(flags & TPER_SYNC_SUPPORTED)) {
+> +		pr_err("TPer sync not supported. flags = %d\n",
+> +		       tper->supported_features);
+> +		return false;
+> +	}
+> +
+> +	return true;
+> +}
+> +
+> +static bool check_SUM(const void *data)
+> +{
+> +	const struct d0_single_user_mode *sum = data;
+> +	u32 nlo = be32_to_cpu(sum->num_locking_objects);
+> +
+> +	if (nlo == 0) {
+> +		pr_err("Need at least one locking object.\n");
+> +		return false;
+> +	}
+> +
+> +	pr_debug("Number of locking objects: %d\n", nlo);
+> +
+> +	return true;
+> +}
+> +
+> +static u16 get_comID_v100(const void *data)
+> +{
+> +	const struct d0_opal_v100 *v100 = data;
+> +
+> +	return be16_to_cpu(v100->baseComID);
+> +}
+> +
+> +static u16 get_comID_v200(const void *data)
+> +{
+> +	const struct d0_opal_v200 *v200 = data;
+> +
+> +	return be16_to_cpu(v200->baseComID);
+> +}
+> +
+> +static int __opal_send_cmd(struct opal_suspend_unlk *data, u16 comID,
+> +			   void *buffer, size_t buflen, sec_cb *cb,
+> +			   void *cb_data)
+> +{
+> +	return data->ops.send(data->data, comID, TCG_SECP_01, buffer, buflen,
+> +			     cb, cb_data);
+> +}
+> +static int _opal_send_cmd(struct block_device *bdev, u16 comID,
+> +			  void *buffer, size_t buflen,
+> +			  sec_cb *cb, void *cb_data)
+> +{
+> +	const struct sec_ops *ops = bdev->bd_disk->fops->sec_ops;
+> +
+> +	return ops->send(bdev->bd_disk->private_data, comID,
+> +			 TCG_SECP_01, buffer, buflen,
+> +			 cb, cb_data);
+> +}
+> +
+> +static int __opal_recv_cmd(struct opal_suspend_unlk *data, u16 comID,
+> +			   void *buffer, size_t buflen, sec_cb *cb,
+> +			   void *cb_data)
+> +{
+> +	return data->ops.recv(data->data, comID, TCG_SECP_01, buffer, buflen,
+> +			     cb, cb_data);
+> +}
+> +
+> +static int _opal_recv_cmd(struct block_device *bdev, u16 comID,
+> +			  void *buffer, size_t buflen,
+> +			  sec_cb *cb, void *cb_data)
+> +{
+> +	const struct sec_ops *ops = bdev->bd_disk->fops->sec_ops;
+> +
+> +	return ops->recv(bdev->bd_disk->private_data, comID,
+> +			 TCG_SECP_01, buffer, buflen,
+> +			 cb, cb_data);
+> +}
+> +
+> +static void opal_send_cb_cont(int error, void *data)
+> +{
+> +	struct opal_dev *dev = data;
+> +	size_t buflen = IO_BUFFER_LENGTH;
+> +	void *buffer = dev->cmd.resp;
+> +	struct opal_header *hdr = buffer;
+> +
+> +	pr_debug("%s: Sent OPAL command: error=%d, outstanding=%d, minTransfer=%d\n",
+> +	       dev->disk_name, error, hdr->cp.outstandingData,
+> +	       hdr->cp.minTransfer);
+> +
+> +	if (error || hdr->cp.outstandingData == 0 ||
+> +	    hdr->cp.minTransfer != 0) {
+> +		if (dev->cmd.cb)
+> +			dev->cmd.cb(error, dev->cmd.cb_data);
+> +		return;
+> +	}
+> +
+> +	memset(buffer, 0, buflen);
+> +	if (dev->resume_from_suspend)
+> +		__opal_recv_cmd(dev->resume_data, dev->comID,
+> +				buffer, buflen, opal_send_cb_cont, dev);
+> +	else
+> +		_opal_recv_cmd(dev->bdev, dev->comID, buffer, buflen,
+> +			       opal_send_cb_cont, dev);
+> +}
+> +
+> +static void opal_send_cb(int error, void *data)
+> +{
+> +	struct opal_dev *dev = data;
+> +	size_t buflen = IO_BUFFER_LENGTH;
+> +	void *buffer = dev->cmd.resp;
+> +
+> +	if (error) {
+> +		if (dev->cmd.cb)
+> +			dev->cmd.cb(error, dev->cmd.cb_data);
+> +		return;
+> +	}
+> +
+> +	memset(buffer, 0, buflen);
+> +	if (dev->resume_from_suspend)
+> +		__opal_recv_cmd(dev->resume_data, dev->comID,
+> +				buffer, buflen, opal_send_cb_cont, dev);
+> +	else
+> +		_opal_recv_cmd(dev->bdev, dev->comID, buffer, buflen,
+> +			       opal_send_cb_cont, dev);
+> +}
+> +
+> +static int opal_send_recv(struct opal_dev *dev, sec_cb *cb, void *cb_data)
+> +{
+> +	size_t buflen = IO_BUFFER_LENGTH;
+> +	void *buffer = dev->cmd.cmd;
+> +	int ret;
+> +
+> +	dev->cmd.cb = cb;
+> +	dev->cmd.cb_data = cb_data;
+> +	if (dev->resume_from_suspend)
+> +		ret = __opal_send_cmd(dev->resume_data, dev->comID, buffer,
+> +				      buflen, opal_send_cb, dev);
+> +	else
+> +		ret = _opal_send_cmd(dev->bdev, dev->comID, buffer, buflen,
+> +				     opal_send_cb, dev);
+> +
+> +	return ret;
+> +}
+> +
+> +static void check_geometry(struct opal_dev *dev, const void *data)
+> +{
+> +	const struct d0_geometry_features *geo = data;
+> +
+> +	dev->align = geo->alignment_granularity;
+> +	dev->lowest_lba = geo->lowest_aligned_lba;
+> +}
+> +
+> +static void opal_discovery0_end(int error, void *data)
+> +{
+> +	bool foundComID = false, supported = true, single_user = false;
+> +	struct opal_dev *dev = data;
+> +	const struct d0_header *hdr;
+> +	const u8 *epos, *cpos;
+> +	u16 comID = 0;
+> +
+> +	if (error) {
+> +		pr_err("%s: Sending discovery0 failed\n", dev->disk_name);
+> +		goto err_callback;
+> +	}
+> +
+> +	epos = dev->cmd.resp;
+> +	cpos = dev->cmd.resp;
+> +	hdr = (struct d0_header *)dev->cmd.resp;
+> +
+> +	print_buffer(dev->cmd.resp, be32_to_cpu(hdr->length));
+> +
+> +	epos += be32_to_cpu(hdr->length); /* end of buffer */
+> +	cpos += sizeof(*hdr); /* current position on buffer */
+> +
+> +	while (cpos < epos && supported) {
+> +		const struct d0_features *body =
+> +			(const struct d0_features *)cpos;
+> +
+> +		switch (be16_to_cpu(body->code)) {
+> +		case FC_TPER:
+> +			supported = check_tper(body->features);
+> +			break;
+> +		case FC_SINGLEUSER:
+> +			single_user = check_SUM(body->features);
+> +			break;
+> +		case FC_GEOMETRY:
+> +			check_geometry(dev, body);
+> +			break;
+> +		case FC_LOCKING:
+> +		case FC_ENTERPRISE:
+> +		case FC_DATASTORE:
+> +			/* some ignored properties */
+> +			pr_debug("%s: Found OPAL feature description: %d\n",
+> +				 dev->disk_name, be16_to_cpu(body->code));
+> +			break;
+> +		case FC_OPALV100:
+> +			comID = get_comID_v100(body->features);
+> +			foundComID = true;
+> +			break;
+> +		case FC_OPALV200:
+> +			comID = get_comID_v200(body->features);
+> +			foundComID = true;
+> +			break;
+> +		default:
+> +			if (be16_to_cpu(body->code) > 0xbfff) {
+> +				/* vendor specific, just ignore */
+> +			} else {
+> +				pr_warn("%s: OPAL Unknown feature: %d\n",
+> +					dev->disk_name, be16_to_cpu(body->code));
+> +			}
+Small nit, how about:
+
+case 0xbfff ... 0xffff:
+	/* vendor specific, just ignore */
+	break;
+default:
+	pr_warn(...
+
+
+
+> +		}
+> +		cpos += body->length + 4;
+> +	}
+> +
+> +	if (!supported) {
+> +		pr_err("%s: Device not supported\n", dev->disk_name);
+> +		goto err_callback;
+> +	}
+> +
+> +	if (!single_user)
+> +		pr_warn("%s: Device doesn't support single user mode\n",
+> +			dev->disk_name);
+> +
+> +	if (!foundComID) {
+> +		pr_warn("%s: Could not find OPAL comID for device. OPAL kernel unlocking will be disabled\n",
+> +			dev->disk_name);
+> +		goto err_callback;
+> +	}
+> +
+> +	dev->comID = comID;
+> +
+> +err_callback:
+> +	if (dev->oper_cb)
+> +		dev->oper_cb(error, dev);
+> +}
+> +
+> +static int opal_discovery0(struct opal_dev *dev)
+> +{
+> +	memset(dev->cmd.resp, 0, IO_BUFFER_LENGTH);
+> +
+> +	if (dev->resume_from_suspend)
+> +		return __opal_recv_cmd(dev->resume_data, 0x0001,
+> +				       dev->cmd.resp, IO_BUFFER_LENGTH,
+> +				       opal_discovery0_end, dev);
+> +
+> +	return _opal_recv_cmd(dev->bdev, 0x0001, dev->cmd.resp,
+> +			      IO_BUFFER_LENGTH, opal_discovery0_end,
+> +			      dev);
+> +}
+> +
+> +static void add_token_u8(struct opal_cmd *cmd, u8 tok)
+> +{
+> +	cmd->cmd[cmd->pos++] = tok;
+> +}
+> +
+> +static ssize_t test_and_add_token_u8(struct opal_cmd *cmd, u8 tok)
+> +{
+> +	BUILD_BUG_ON(IO_BUFFER_LENGTH >= SIZE_MAX);
+> +
+> +	if (cmd->pos >= IO_BUFFER_LENGTH - 1) {
+> +		pr_err("Error adding u8: end of buffer.\n");
+> +		return -ERANGE;
+> +	}
+> +
+> +	add_token_u8(cmd, tok);
+> +
+> +	return 1;
+> +}
+> +
+> +#define TINY_ATOM_DATA_MASK GENMASK(5, 0)
+> +#define TINY_ATOM_SIGNED BIT(6)
+> +
+> +#define SHORT_ATOM_ID BIT(7)
+> +#define SHORT_ATOM_BYTESTRING BIT(5)
+> +#define SHORT_ATOM_SIGNED BIT(4)
+> +#define SHORT_ATOM_LEN_MASK GENMASK(3, 0)
+> +
+> +static void add_short_atom_header(struct opal_cmd *cmd, bool bytestring,
+> +				  bool has_sign, int len)
+> +{
+> +	u8 atom;
+> +
+> +	atom = SHORT_ATOM_ID;
+> +	atom |= bytestring ? SHORT_ATOM_BYTESTRING : 0;
+> +	atom |= has_sign ? SHORT_ATOM_SIGNED : 0;
+> +	atom |= len & SHORT_ATOM_LEN_MASK;
+> +
+> +	add_token_u8(cmd, atom);
+> +}
+> +
+> +#define MEDIUM_ATOM_ID (BIT(7) | BIT(6))
+> +#define MEDIUM_ATOM_BYTESTRING BIT(4)
+> +#define MEDIUM_ATOM_SIGNED BIT(3)
+> +#define MEDIUM_ATOM_LEN_MASK GENMASK(2, 0)
+> +
+> +static void add_medium_atom_header(struct opal_cmd *cmd, bool bytestring,
+> +				   bool has_sign, int len)
+> +{
+> +	u8 header0;
+> +
+> +	header0 = MEDIUM_ATOM_ID;
+> +	header0 |= bytestring ? MEDIUM_ATOM_BYTESTRING : 0;
+> +	header0 |= has_sign ? MEDIUM_ATOM_SIGNED : 0;
+> +	header0 |= (len >> 8) & MEDIUM_ATOM_LEN_MASK;
+> +	cmd->cmd[cmd->pos++] = header0;
+> +	cmd->cmd[cmd->pos++] = len;
+> +}
+> +
+> +static void add_token_u64(struct opal_cmd *cmd, u64 number, size_t len)
+> +{
+> +	add_short_atom_header(cmd, false, false, len);
+> +
+> +	while (len--) {
+> +		u8 n = number >> (len * 8);
+> +
+> +		add_token_u8(cmd, n);
+> +	}
+> +}
+> +
+> +static ssize_t test_and_add_token_u64(struct opal_cmd *cmd, u64 number)
+> +{
+> +	int len;
+> +	int msb;
+> +
+> +	if (!(number & ~TINY_ATOM_DATA_MASK))
+> +		return test_and_add_token_u8(cmd, number);
+> +
+> +	msb = fls(number);
+> +	len = DIV_ROUND_UP(msb, 4);
+> +
+> +	if (cmd->pos >= IO_BUFFER_LENGTH - len - 1) {
+> +		pr_err("Error adding u64: end of buffer.\n");
+> +		return -ERANGE;
+> +	}
+> +
+> +	add_token_u64(cmd, number, len);
+> +
+> +	/* return length of token plus atom */
+> +	return len + 1;
+> +}
+> +
+> +static void add_token_bytestring(struct opal_cmd *cmd,
+> +				 const u8 *bytestring, size_t len)
+> +{
+> +	memcpy(&cmd->cmd[cmd->pos], bytestring, len);
+> +	cmd->pos += len;
+> +}
+> +
+> +static ssize_t test_and_add_token_bytestring(struct opal_cmd *cmd,
+> +					     const u8 *bytestring, size_t len)
+> +{
+> +	size_t header_len = 1;
+> +	bool is_short_atom = true;
+> +
+> +	if (len & ~SHORT_ATOM_LEN_MASK) {
+> +		header_len = 2;
+> +		is_short_atom = false;
+> +	}
+> +
+> +	if (cmd->pos >= IO_BUFFER_LENGTH - len - header_len) {
+> +		pr_err("Error adding bytestring: end of buffer.\n");
+> +		return -ERANGE;
+> +	}
+> +
+> +	if (is_short_atom)
+> +		add_short_atom_header(cmd, true, false, len);
+> +	else
+> +		add_medium_atom_header(cmd, true, false, len);
+> +
+> +	add_token_bytestring(cmd, bytestring, len);
+> +
+> +	return header_len + len;
+> +}
+> +
+> +#define LOCKING_RANGE_NON_GLOBAL 0x03
+> +
+> +static int build_locking_range(u8 *buffer, size_t length, u8 lr)
+> +{
+> +	if (length < OPAL_UID_LENGTH)
+> +		return -ERANGE;
+> +
+> +	memcpy(buffer, OPALUID[OPAL_LOCKINGRANGE_GLOBAL], OPAL_UID_LENGTH);
+> +
+> +	if (lr == 0)
+> +		return 0;
+> +	buffer[5] = LOCKING_RANGE_NON_GLOBAL;
+> +	buffer[7] = lr;
+> +
+> +	return 0;
+> +}
+> +
+> +static int build_locking_user(u8 *buffer, size_t length, u8 lr)
+> +{
+> +	if (length < OPAL_UID_LENGTH)
+> +		return -ERANGE;
+> +
+> +	memcpy(buffer, OPALUID[OPAL_USER1_UID], OPAL_UID_LENGTH);
+> +
+> +	buffer[7] = lr + 1;
+> +
+> +	return 0;
+> +}
+> +
+> +/*
+> + * N = number of format specifiers (1-999) to be replicated
+> + * c = u8
+> + * u = u64
+> + * s = bytestring, length
+> + *
+> + * ret = test_and_add_token_va(cmd, "c",
+> + *			       u8_val1);
+> + *
+> + * ret = test_and_add_token_va(cmd, "2c2u",
+> + *			       u8_val1, u8_val2, u64_val1, u64_val2);
+> + *
+> + * ret = test_and_add_token_va(cmd, "3s",
+> + *			       bytestring1, length1,
+> + *			       bytestring2, length2,
+> + *			       bytestring3, length3);
+> + */
+> +static int test_and_add_token_va(struct opal_cmd *cmd,
+> +				 const char *fmt, ...)
+> +{
+> +	const u8 *it = fmt, *tmp;
+> +	int ret, num = 1, sum = 0;
+> +	va_list ap;
+> +
+> +	va_start(ap, fmt);
+> +
+> +	while (*it != '\0') {
+> +		u64 tok64 = 0;
+> +		u8 tok, *bstr;
+> +		size_t len;
+> +
+> +		ret = 0;
+> +
+> +		switch (*it) {
+> +		case '1' ... '9':
+> +			tmp = it;
+> +			num = 0;
+> +			while (*tmp >= '0' && *tmp <= '9')
+> +				num = num * 10 + (*tmp++ - '0');
+> +			it = tmp;
+> +			continue;
+> +		case 'c':
+> +			while (num--) {
+> +				tok = va_arg(ap, unsigned int);
+> +				ret = test_and_add_token_u8(cmd, tok);
+> +				if (ret < 0)
+> +					goto err;
+> +			}
+> +			num = 1;
+> +			break;
+> +		case 'u':
+> +			while (num--) {
+> +				tok64 = va_arg(ap, u64);
+> +				ret = test_and_add_token_u64(cmd, tok64);
+> +				if (ret < 0)
+> +					goto err;
+> +			}
+> +			num = 1;
+> +			break;
+> +		case 's':
+> +			while (num--) {
+> +				bstr = va_arg(ap, u8 *);
+> +				len = va_arg(ap, size_t);
+> +				ret = test_and_add_token_bytestring(cmd, bstr,
+> +								    len);
+> +				if (ret < 0)
+> +					goto err;
+> +			}
+> +			num = 1;
+> +			break;
+> +		case ' ':
+> +		case '\t':
+> +			/* ignored */
+> +			break;
+> +		default:
+> +			pr_warn("Unrecognized type.\n");
+> +		}
+> +
+> +		it++;
+> +		sum += ret;
+> +	}
+> +
+> +	va_end(ap);
+> +
+> +	return sum;
+> +
+> + err:
+> +	pr_err("Token failed to be added.\n");
+> +	return ret;
+> +}
+> +
+> +static void set_comID(struct opal_cmd *cmd, u16 comID)
+> +{
+> +	struct opal_header *hdr = (struct opal_header *)cmd->cmd;
+> +
+> +	hdr->cp.extendedComID[0] = comID >> 8;
+> +	hdr->cp.extendedComID[1] = comID;
+> +	hdr->cp.extendedComID[2] = 0;
+> +	hdr->cp.extendedComID[3] = 0;
+> +}
+> +
+> +static int cmd_finalize(struct opal_cmd *cmd, u32 hsn, u32 tsn)
+> +{
+> +	struct opal_header *hdr;
+> +	int ret;
+> +
+> +	ret = test_and_add_token_va(cmd, "6c",
+> +				    OPAL_ENDOFDATA, OPAL_STARTLIST,
+> +				    0, 0, 0, OPAL_ENDLIST);
+> +
+> +	if (ret < 0) {
+> +		pr_err("Error finalizing command.\n");
+> +		return -EFAULT;
+> +	}
+> +
+> +	hdr = (struct opal_header *) cmd->cmd;
+> +
+> +	hdr->pkt.TSN = cpu_to_be32(tsn);
+> +	hdr->pkt.HSN = cpu_to_be32(hsn);
+> +
+> +	hdr->subpkt.length = cpu_to_be32(cmd->pos - sizeof(*hdr));
+> +	while (cmd->pos % 4) {
+> +		if (cmd->pos >= IO_BUFFER_LENGTH) {
+> +			pr_err("Error: Buffer overrun\n");
+> +			return -ERANGE;
+> +		}
+> +		cmd->cmd[cmd->pos++] = 0;
+> +	}
+> +	hdr->pkt.length = cpu_to_be32(cmd->pos - sizeof(hdr->cp) -
+> +				      sizeof(hdr->pkt));
+> +	hdr->cp.length = cpu_to_be32(cmd->pos - sizeof(hdr->cp));
+> +
+> +	return 0;
+> +}
+> +
+> +static enum OPAL_RESPONSE_TOKEN token_type(const struct parsed_resp *resp,
+> +					   int n)
+> +{
+> +	const struct opal_resp_tok *tok;
+> +
+> +	if (n >= resp->num) {
+> +		pr_err("Token number doesn't exist: %d, resp: %d\n",
+> +		       n, resp->num);
+> +		return OPAL_DTA_TOKENID_INVALID;
+> +	}
+> +
+> +	tok = &resp->toks[n];
+> +	if (tok->len == 0) {
+> +		pr_err("Token length must be non-zero\n");
+> +		return OPAL_DTA_TOKENID_INVALID;
+> +	}
+> +
+> +	return tok->type;
+> +}
+> +
+> +/*
+> + * This function returns 0 in case of invalid token. One should call
+> + * token_type() first to find out if the token is valid or not.
+> + */
+> +static enum OPAL_TOKEN response_get_token(const struct parsed_resp *resp,
+> +					  int n)
+> +{
+> +	const struct opal_resp_tok *tok;
+> +
+> +	if (n >= resp->num) {
+> +		pr_err("Token number doesn't exist: %d, resp: %d\n",
+> +		       n, resp->num);
+> +		return 0;
+> +	}
+> +
+> +	tok = &resp->toks[n];
+> +	if (tok->len == 0) {
+> +		pr_err("Token length must be non-zero\n");
+> +		return 0;
+> +	}
+> +
+> +	return tok->pos[0];
+> +}
+> +
+> +static size_t response_parse_tiny(struct opal_resp_tok *tok,
+> +				  const u8 *pos)
+> +{
+> +	tok->pos = pos;
+> +	tok->len = 1;
+> +	tok->width = OPAL_WIDTH_TINY;
+> +
+> +	if (pos[0] & TINY_ATOM_SIGNED) {
+> +		tok->type = OPAL_DTA_TOKENID_SINT;
+> +	} else {
+> +		tok->type = OPAL_DTA_TOKENID_UINT;
+> +		tok->stored.u = pos[0] & 0x3f;
+> +	}
+> +
+> +	return tok->len;
+> +}
+> +
+> +static size_t response_parse_short(struct opal_resp_tok *tok,
+> +				   const u8 *pos)
+> +{
+> +	tok->pos = pos;
+> +	tok->len = (pos[0] & SHORT_ATOM_LEN_MASK) + 1;
+> +	tok->width = OPAL_WIDTH_SHORT;
+> +
+> +	if (pos[0] & SHORT_ATOM_BYTESTRING) {
+> +		tok->type = OPAL_DTA_TOKENID_BYTESTRING;
+> +	} else if (pos[0] & SHORT_ATOM_SIGNED) {
+> +		tok->type = OPAL_DTA_TOKENID_SINT;
+> +	} else {
+> +		u64 u_integer = 0;
+> +		int i, b = 0;
+> +
+> +		tok->type = OPAL_DTA_TOKENID_UINT;
+> +		if (tok->len > 9)
+Should this be len > 8 or len >= 9 ?
+
+> +			pr_warn("uint64 with more than 8 bytes\n");
+> +		for (i = tok->len - 1; i > 0; i--) {
+> +			u_integer |= ((u64)pos[i] << (8 * b));
+> +			b++;
+> +		}
+It doesn't look particularly safe to keep using this driver on a drive
+if it returns a len > 8. But the specs do allow 16-byte data in a short
+atom, so maybe we should bail on allowing the driver to manage the
+drive, or change the types to some 16-byte type?
+
+> +		tok->stored.u = u_integer;
+> +	}
+> +
+> +	return tok->len;
+> +}
+> +
+> +static size_t response_parse_medium(struct opal_resp_tok *tok,
+> +				    const u8 *pos)
+> +{
+> +	tok->pos = pos;
+> +	tok->len = (((pos[0] & MEDIUM_ATOM_LEN_MASK) << 8) | pos[1]) + 2;
+> +	tok->width = OPAL_WIDTH_MEDIUM;
+> +
+> +	if (pos[0] & MEDIUM_ATOM_BYTESTRING)
+> +		tok->type = OPAL_DTA_TOKENID_BYTESTRING;
+> +	else if (pos[0] & MEDIUM_ATOM_SIGNED)
+> +		tok->type = OPAL_DTA_TOKENID_SINT;
+> +	else
+> +		tok->type = OPAL_DTA_TOKENID_UINT;
+> +
+> +	return tok->len;
+> +}
+> +
+> +#define LONG_ATOM_ID (BIT(7) | BIT(6) | BIT(5))
+> +#define LONG_ATOM_BYTESTRING BIT(1)
+> +#define LONG_ATOM_SIGNED BIT(0)
+> +static size_t response_parse_long(struct opal_resp_tok *tok,
+> +				  const u8 *pos)
+> +{
+> +	tok->pos = pos;
+> +	tok->len = ((pos[1] << 16) | (pos[2] << 8) | pos[3]) + 4;
+> +	tok->width = OPAL_WIDTH_LONG;
+> +
+> +	if (pos[0] & LONG_ATOM_BYTESTRING)
+> +		tok->type = OPAL_DTA_TOKENID_BYTESTRING;
+> +	else if (pos[0] & LONG_ATOM_SIGNED)
+> +		tok->type = OPAL_DTA_TOKENID_SINT;
+> +	else
+> +		tok->type = OPAL_DTA_TOKENID_UINT;
+> +
+> +	return tok->len;
+> +}
+> +
+> +static size_t response_parse_token(struct opal_resp_tok *tok,
+> +				   const u8 *pos)
+> +{
+> +	tok->pos = pos;
+> +	tok->len = 1;
+> +	tok->type = OPAL_DTA_TOKENID_TOKEN;
+> +	tok->width = OPAL_WIDTH_TOKEN;
+> +
+> +	return tok->len;
+> +}
+> +
+> +static int response_parse(const u8 *buf, size_t length,
+> +			  struct parsed_resp *resp)
+> +{
+> +	const struct opal_header *hdr;
+> +	struct opal_resp_tok *iter;
+> +	int ret, num_entries = 0;
+> +	u32 cpos = 0, total;
+> +	size_t token_length;
+> +	const u8 *pos;
+> +
+> +	if (!buf)
+> +		return -EFAULT;
+> +
+> +	if (!resp)
+> +		return -EFAULT;
+> +
+> +	hdr = (struct opal_header *)buf;
+> +	pos = buf;
+> +	pos += sizeof(*hdr);
+> +
+> +	pr_debug("Response size: cp: %d, pkt: %d, subpkt: %d\n",
+> +		 be32_to_cpu(hdr->cp.length),
+> +		 be32_to_cpu(hdr->pkt.length),
+> +		 be32_to_cpu(hdr->subpkt.length));
+> +
+> +	if ((hdr->cp.length == 0)
+> +	    || (hdr->pkt.length == 0)
+> +	    || (hdr->subpkt.length == 0)) {
+> +		pr_err("Bad header length. cp: %d, pkt: %d, subpkt: %d\n",
+> +		       be32_to_cpu(hdr->cp.length),
+> +		       be32_to_cpu(hdr->pkt.length),
+> +		       be32_to_cpu(hdr->subpkt.length));
+> +		print_buffer(pos, sizeof(*hdr));
+> +		ret = -EINVAL;
+> +		goto err;
+> +	}
+> +
+> +	if (pos > buf + length) {
+> +		ret = -EFAULT;
+> +		goto err;
+> +	}
+> +
+> +	iter = resp->toks;
+> +	total = be32_to_cpu(hdr->subpkt.length);
+> +	print_buffer(pos, total);
+> +	while (cpos < total) {
+> +		if (!(pos[0] & 0x80)) /* tiny atom */
+> +			token_length = response_parse_tiny(iter, pos);
+> +		else if (!(pos[0] & 0x40)) /* short atom */
+> +			token_length = response_parse_short(iter, pos);
+> +		else if (!(pos[0] & 0x20)) /* medium atom */
+> +			token_length = response_parse_medium(iter, pos);
+> +		else if (!(pos[0] & 0x10)) /* long atom */
+> +			token_length = response_parse_long(iter, pos);
+> +		else /* TOKEN */
+> +			token_length = response_parse_token(iter, pos);
+> +
+> +		pos += token_length;
+> +		cpos += token_length;
+> +		iter++;
+> +		num_entries++;
+> +	}
+> +
+> +	if (num_entries == 0) {
+> +		pr_err("Couldn't parse response.\n");
+> +		ret = -EINVAL;
+> +		goto err;
+> +	}
+> +	resp->num = num_entries;
+> +
+> +	return 0;
+> +err:
+> +	return ret;
+> +}
+> +
+> +static size_t response_get_string(const struct parsed_resp *resp, int n,
+> +				  const char **store)
+> +{
+> +	*store = NULL;
+> +	if (!resp) {
+> +		pr_err("Response is NULL\n");
+> +		return 0;
+> +	}
+> +
+> +	if (n > resp->num) {
+> +		pr_err("Response has %d tokens. Can't access %d\n",
+> +		       resp->num, n);
+> +		return 0;
+> +	}
+> +
+> +	if (resp->toks[n].type != OPAL_DTA_TOKENID_BYTESTRING) {
+> +		pr_err("Token is not a byte string!\n");
+> +		return 0;
+> +	}
+> +
+> +	*store = resp->toks[n].pos + 1;
+> +	return resp->toks[n].len - 1;
+> +}
+> +
+> +static u64 response_get_u64(const struct parsed_resp *resp, int n)
+> +{
+> +	if (!resp) {
+> +		pr_err("Response is NULL\n");
+> +		return 0;
+> +	}
+> +
+> +	if (n > resp->num) {
+> +		pr_err("Response has %d tokens. Can't access %d\n",
+> +		       resp->num, n);
+> +		return 0;
+> +	}
+> +
+> +	if (resp->toks[n].type != OPAL_DTA_TOKENID_UINT) {
+> +		pr_err("Token is not unsigned it: %d\n",
+> +		       resp->toks[n].type);
+> +		return 0;
+> +	}
+> +
+> +	if (!((resp->toks[n].width == OPAL_WIDTH_TINY) ||
+> +	      (resp->toks[n].width == OPAL_WIDTH_SHORT))) {
+> +		pr_err("Atom is not short or tiny: %d\n",
+> +		       resp->toks[n].width);
+> +		return 0;
+> +	}
+> +
+> +	return resp->toks[n].stored.u;
+> +}
+> +
+> +static u8 response_status(const struct parsed_resp *resp)
+> +{
+> +	if ((token_type(resp, 0) == OPAL_DTA_TOKENID_TOKEN)
+> +	    && (response_get_token(resp, 0) == OPAL_ENDOFSESSION)) {
+> +		return 0;
+> +	}
+> +
+> +	if (resp->num < 5)
+> +		return DTAERROR_NO_METHOD_STATUS;
+> +
+> +	if ((token_type(resp, resp->num - 1) != OPAL_DTA_TOKENID_TOKEN) ||
+> +	    (token_type(resp, resp->num - 5) != OPAL_DTA_TOKENID_TOKEN) ||
+> +	    (response_get_token(resp, resp->num - 1) != OPAL_ENDLIST) ||
+> +	    (response_get_token(resp, resp->num - 5) != OPAL_STARTLIST))
+> +		return DTAERROR_NO_METHOD_STATUS;
+> +
+> +	return response_get_u64(resp, resp->num - 4);
+> +}
+> +
+> +/* Parses and checks for errors */
+> +static int parse_and_check_status(struct opal_dev *dev)
+> +{
+> +	struct opal_cmd *cmd;
+> +	int error;
+> +
+> +	cmd = &dev->cmd;
+> +	print_buffer(cmd->cmd, cmd->pos);
+> +
+> +	error = response_parse(cmd->resp, IO_BUFFER_LENGTH, &dev->parsed);
+> +	if (error) {
+> +		pr_err("%s: Couldn't parse response.\n", dev->disk_name);
+> +		goto err_return;
+> +	}
+> +
+> +	error = response_status(&dev->parsed);
+> +	if (error)
+> +		pr_err("%s: Response Status: %d\n", dev->disk_name,
+> +		       error);
+> +
+> + err_return:
+> +	return error;
+> +}
+> +
+> +static void clear_opal_cmd(struct opal_cmd *cmd)
+> +{
+> +	cmd->pos = sizeof(struct opal_header);
+> +	memset(cmd->cmd, 0, IO_BUFFER_LENGTH);
+> +	cmd->cb = NULL;
+> +	cmd->cb_data = NULL;
+> +}
+> +
+> +static void start_opal_session_cont(int error, void *data)
+> +{
+> +	struct opal_dev *dev = data;
+> +	u32 HSN, TSN;
+> +
+> +	if (error)
+> +		goto err_return;
+> +
+> +	error = parse_and_check_status(dev);
+> +	if (error)
+> +		goto err_return;
+> +
+> +	HSN = response_get_u64(&dev->parsed, 4);
+> +	TSN = response_get_u64(&dev->parsed, 5);
+> +
+> +	if (HSN == 0 && TSN == 0) {
+> +		pr_err("%s: Couldn't authenticate session\n", dev->disk_name);
+> +		error = -EPERM;
+> +		goto err_return;
+> +	}
+> +
+> +	dev->HSN = HSN;
+> +	dev->TSN = TSN;
+> +
+> +err_return:
+> +	if (dev->oper_cb)
+> +		dev->oper_cb(error, dev);
+> +}
+> +
+> +static int get_opal_key(struct opal_dev *dev)
+> +{
+> +	struct key *ukey = NULL;
+> +	const u8 *tmpkey = NULL;
+> +	size_t tmplen;
+> +	int ret = 0;
+> +
+> +	if (dev->key_type == OPAL_KEY_PLAIN) {
+> +		tmpkey = dev->key_name;
+> +		tmplen = dev->key_name_len;
+> +	} else if (dev->key_type == OPAL_KEY_KEYRING) {
+> +		ukey = request_user_key(dev->key_name, &tmpkey, &tmplen);
+> +		if (IS_ERR(ukey)) {
+> +			pr_err("%s: Can't retrieve key: %ld\n", dev->disk_name,
+> +			       PTR_ERR(ukey));
+> +			return PTR_ERR(ukey);
+> +		}
+> +	} else {
+> +		pr_err("Requested invalid key type: %d\n", dev->key_type);
+> +		return -EINVAL;
+> +	}
+> +
+> +	if (tmplen > OPAL_KEY_MAX) {
+> +		pr_err("Requested key with invalid size: %zd\n", tmplen);
+> +		ret = -EINVAL;
+> +		goto err_exit;
+> +	}
+> +
+> +	dev->key_len = tmplen;
+> +	if (!memcpy(dev->key, tmpkey, tmplen)) {
+> +		pr_err("Error when copying key");
+> +		ret = -EFAULT;
+> +		goto err_exit;
+> +	}
+> +
+> +err_exit:
+> +	key_put(ukey);
+> +
+> +	return 0;
+> +}
+> +
+> +static void clean_opal_key(struct opal_dev *dev)
+> +{
+> +	memset(dev->key, 0, OPAL_KEY_MAX);
+> +	dev->key_len = 0;
+> +}
+> +
+> +static inline void clean_function_data(struct opal_dev *dev)
+> +{
+> +		dev->func_data = NULL;
+> +		dev->num_func_data = 0;
+> +}
+> +
+> +/* This is a generic continue fn.
+> + * We use this when we don't care about the response data
+> + * and simply want to check the status and continue.
+> + */
+> +static void generic_cont(int error, void *data)
+> +{
+> +	struct opal_dev *dev = data;
+> +
+> +	if (error)
+> +		goto err_return;
+> +
+> +	error = parse_and_check_status(dev);
+> +
+> + err_return:
+> +	if (dev->oper_cb)
+> +		dev->oper_cb(error, dev);
+> +}
+
+How about:
+
+static void generic_cont(int error, void *data)
+{
+	struct opal_dev *dev = data;
+
+	if (!error)
+		error = parse_and_check_status(dev);
+
+	if (dev->oper_cb)
+		dev->oper_cb(error, dev);
+}
+
+> +
+> +static void end_session_cont(int error, void *data)
+> +{
+> +	struct opal_dev *dev = data;
+> +
+> +	dev->HSN = 0;
+> +	dev->TSN = 0;
+> +	generic_cont(error, data);
+> +}
+> +
+> +static int finalize_and_send(struct opal_dev *dev, struct opal_cmd *cmd,
+> +			     sec_cb cont)
+> +{
+> +	int ret;
+> +
+> +	ret = cmd_finalize(cmd, dev->HSN, dev->TSN);
+> +	if (ret) {
+> +		pr_err("%s: Error finalizing command buffer: %d\n",
+> +		       dev->disk_name, ret);
+> +		return ret;
+> +	}
+> +
+> +	print_buffer(cmd->cmd, cmd->pos);
+> +
+> +	ret = opal_send_recv(dev, cont, dev);
+> +	if (ret)
+> +		pr_err("%s: Error running command: %d\n",
+> +		       dev->disk_name, ret);
+> +
+> +	return ret;
+> +}
+> +
+> +static int wait_for_cmd_completion(struct opal_completion *completion)
+> +{
+> +	wait_for_completion_interruptible(&completion->cmd_completion);
+> +	return completion->completion_status;
+> +}
+> +
+> +static int gen_key(struct opal_dev *dev)
+> +{
+> +	const u8 *method;
+> +	u8 uid[OPAL_UID_LENGTH];
+> +	struct opal_cmd *cmd;
+> +	int ret;
+> +
+> +	cmd = &dev->cmd;
+> +	clear_opal_cmd(cmd);
+> +	set_comID(cmd, dev->comID);
+> +
+> +	memcpy(uid, dev->prev_data, min(sizeof(uid), dev->prev_d_len));
+> +	method = OPALMETHOD[OPAL_GENKEY];
+> +	kfree(dev->prev_data);
+> +	dev->prev_data = NULL;
+> +
+> +	ret = test_and_add_token_va(cmd, "c2s 2c",
+> +				    OPAL_CALL,
+> +				    uid, OPAL_UID_LENGTH,
+> +				    method, OPAL_METHOD_LENGTH,
+> +
+> +				    OPAL_STARTLIST,
+> +				    OPAL_ENDLIST);
+> +	if (ret < 0) {
+> +		pr_err("%s: Error building gen key command\n",
+> +		       dev->disk_name);
+> +		return ret;
+> +	}
+> +
+> +	return finalize_and_send(dev, cmd, generic_cont);
+> +}
+> +
+> +static void get_active_key_cont(int error, void *data)
+> +{
+> +	struct opal_dev *dev = data;
+> +	const char *activekey;
+> +	size_t keylen;
+> +
+> +	if (error)
+> +		goto err_return;
+> +
+> +	error = parse_and_check_status(dev);
+> +	if (error)
+> +		goto err_return;
+> +	keylen = response_get_string(&dev->parsed, 4, &activekey);
+> +	if (!activekey) {
+> +		pr_err("%s: Couldn't extract the Activekey from the response\n",
+> +		       __func__);
+> +		error = 0x0A;
+> +		goto err_return;
+> +	}
+> +	dev->prev_data = kmemdup(activekey, keylen, GFP_KERNEL);
+> +
+> +	if (!dev->prev_data)
+> +		error = -ENOMEM;
+> +
+> +	dev->prev_d_len = keylen;
+> +
+> +err_return:
+> +	if (dev->oper_cb)
+> +		dev->oper_cb(error, dev);
+> +}
+> +
+> +static int get_active_key(struct opal_dev *dev)
+> +{
+> +	const u8 *method;
+> +	u8 uid[OPAL_UID_LENGTH];
+> +	struct opal_cmd *cmd;
+> +	int ret;
+> +
+> +	cmd = &dev->cmd;
+> +	clear_opal_cmd(cmd);
+> +	set_comID(cmd, dev->comID);
+> +
+> +	method = OPALMETHOD[OPAL_GET];
+> +
+> +	ret = build_locking_range(uid, sizeof(uid), dev->lr);
+> +	if (ret < 0) {
+> +		pr_err("%s: Can't build locking range\n", dev->disk_name);
+> +		return -EINVAL;
+> +	}
+> +
+> +	ret = test_and_add_token_va(cmd, "c2s 6c 4c 2c",
+> +				    OPAL_CALL,
+> +				    uid, OPAL_UID_LENGTH,
+> +				    method, OPAL_METHOD_LENGTH,
+> +
+> +				    OPAL_STARTLIST,
+> +				    OPAL_STARTLIST,
+> +				    OPAL_STARTNAME,
+> +				    OPAL_TINY_UINT_03, /* startCloumn */
+> +				    OPAL_TINY_UINT_10, /* ActiveKey */
+> +				    OPAL_ENDNAME,
+> +
+> +				    OPAL_STARTNAME,
+> +				    OPAL_TINY_UINT_04, /* endColumn */
+> +				    OPAL_TINY_UINT_10, /* ActiveKey */
+> +				    OPAL_ENDNAME,
+> +
+> +				    OPAL_ENDLIST,
+> +				    OPAL_ENDLIST);
+> +	if (ret < 0) {
+> +		pr_err("%s: Error building get active key command\n",
+> +		       dev->disk_name);
+> +		return ret;
+> +	}
+> +
+> +	return finalize_and_send(dev, cmd, get_active_key_cont);
+> +}
+> +
+> +static int setup_locking_range(struct opal_dev *dev)
+> +{
+> +	const u8 *method;
+> +	u8 uid[OPAL_UID_LENGTH];
+> +	struct opal_cmd *cmd;
+> +	struct opal_user_lr_setup *setup;
+> +	int ret;
+> +
+> +	cmd = &dev->cmd;
+> +	clear_opal_cmd(cmd);
+> +	set_comID(cmd, dev->comID);
+> +
+> +	method = OPALMETHOD[OPAL_SET];
+> +	ret = build_locking_range(uid, sizeof(uid), dev->lr);
+> +	if (ret < 0) {
+> +		pr_err("%s: Can't build locking range\n", dev->disk_name);
+> +		return -EINVAL;
+> +	}
+> +	setup = dev->func_data[dev->state - 1];
+> +
+> +	ret = test_and_add_token_va(cmd, "c2s  4c 2cuc 2cuc 2cuc 2cu 4c",
+> +				    OPAL_CALL,
+> +				    uid, OPAL_UID_LENGTH,
+> +				    method, OPAL_METHOD_LENGTH,
+> +
+> +				    OPAL_STARTLIST,
+> +				    OPAL_STARTNAME,
+> +				    OPAL_VALUES,
+> +				    OPAL_STARTLIST,
+> +
+> +				    OPAL_STARTNAME,
+> +				    OPAL_TINY_UINT_03, /* Range Start */
+> +				    setup->range_start,
+> +				    OPAL_ENDNAME,
+> +
+> +				    OPAL_STARTNAME,
+> +				    OPAL_TINY_UINT_04, /* Range Length */
+> +				    setup->range_length,
+> +				    OPAL_ENDNAME,
+> +
+> +				    OPAL_STARTNAME,
+> +				    OPAL_TINY_UINT_05, /* ReadLockEnabled */
+> +				    !!setup->RLE,
+> +				    OPAL_ENDNAME,
+> +
+> +				    OPAL_STARTNAME,
+> +				    OPAL_TINY_UINT_06, /* WriteLockEnabled */
+> +				    !!setup->WLE,
+> +
+> +				    OPAL_ENDNAME,
+> +				    OPAL_ENDLIST,
+> +				    OPAL_ENDNAME,
+> +				    OPAL_ENDLIST);
+> +	if (ret < 0) {
+> +		pr_err("%s: Error building Setup Locking range command.\n",
+> +		       dev->disk_name);
+> +		return ret;
+> +
+> +	}
+> +
+> +	return finalize_and_send(dev, cmd, generic_cont);
+> +}
+> +
+> +static int start_adminsp_opal_session(struct opal_dev *dev,
+> +				      enum OPAL_UID auth,
+> +				      const char *key,
+> +				      u8 key_len)
+> +{
+> +	const u8 *method, *smuid, *admin_sp, *hsa;
+> +	struct opal_cmd *cmd;
+> +	u32 HSN;
+> +	int ret;
+> +
+> +	if (key == NULL && auth != OPAL_ANYBODY_UID) {
+> +		pr_err("%s: Attempted to open ADMIN_SP Session without a Host" \
+> +		       "Challenge, and not as the Anybody UID\n", __func__);
+> +		return 1;
+> +	}
+> +
+> +	cmd = &dev->cmd;
+> +	clear_opal_cmd(cmd);
+> +
+> +	set_comID(cmd, dev->comID);
+> +	HSN = 0x41;
+> +
+> +	smuid = OPALUID[OPAL_SMUID_UID];
+> +	method = OPALMETHOD[OPAL_STARTSESSION];
+> +	admin_sp = OPALUID[OPAL_ADMINSP_UID];
+> +
+> +	ret = test_and_add_token_va(cmd, "c2s cusc",
+> +				    OPAL_CALL,
+> +				    smuid, OPAL_UID_LENGTH,
+> +				    method, OPAL_METHOD_LENGTH,
+> +				    OPAL_STARTLIST,
+> +				    HSN,
+> +				    admin_sp, OPAL_UID_LENGTH,
+> +				    OPAL_TINY_UINT_01);
+> +	if (ret < 0) {
+> +		pr_err("%s: Error building start adminsp session command.\n",
+> +		       dev->disk_name);
+> +		return ret;
+> +	}
+> +
+> +	switch (auth) {
+> +	case OPAL_ANYBODY_UID:
+> +		/* nothing left to do for anybody, just end and finalize */
+> +		ret = test_and_add_token_va(cmd, "c",
+> +					    OPAL_ENDLIST);
+> +		break;
+> +	case OPAL_SID_UID:
+> +		hsa = OPALUID[OPAL_SID_UID];
+> +		ret = test_and_add_token_va(cmd, "2c s 3c s 2c",
+> +					    OPAL_STARTNAME,
+> +					    OPAL_TINY_UINT_00, /* HostChallenge */
+> +					    key, key_len,
+> +					    OPAL_ENDNAME,
+> +					    OPAL_STARTNAME,
+> +					    OPAL_TINY_UINT_03, /* HostSignAuth */
+> +					    hsa, OPAL_UID_LENGTH,
+> +					    OPAL_ENDNAME,
+> +					    OPAL_ENDLIST);
+> +		break;
+> +	default:
+> +		pr_err("Cannot start Admin SP session with auth %d\n", auth);
+> +		return 1;
+> +	}
+> +
+> +	if (ret < 0) {
+> +		pr_err("%s: Error building start adminsp session command.\n",
+> +		       dev->disk_name);
+> +		return ret;
+> +	}
+> +
+> +	return finalize_and_send(dev, cmd, start_opal_session_cont);
+> +}
+> +
+> +static int start_anybodyASP_opal_session(struct opal_dev *dev)
+> +{
+> +	return start_adminsp_opal_session(dev, OPAL_ANYBODY_UID, NULL, 0);
+> +}
+> +
+> +static int start_SIDASP_opal_session(struct opal_dev *dev)
+> +{
+> +	int ret;
+> +	const u8 *key = dev->prev_data;
+> +
+> +	if (!key)
+> +		ret = start_adminsp_opal_session(dev, OPAL_SID_UID, dev->key,
+> +						 dev->key_len);
+> +	else {
+> +		ret = start_adminsp_opal_session(dev, OPAL_SID_UID, key,
+> +						 dev->prev_d_len);
+> +		kfree(key);
+> +		dev->prev_data = NULL;
+> +	}
+> +	return ret;
+> +}
+> +
+> +static int start_lockingsp_opal_session(struct opal_dev *dev,
+> +					enum OPAL_UID auth, const u8 *key,
+> +					u8 key_len)
+> +{
+> +
+> +	const u8 *method, *smuid, *locking_sp, *hsa;
+> +	struct opal_cmd *cmd;
+> +	size_t klen = key_len;
+> +	u32 HSN;
+> +	int ret;
+> +
+> +	if (key == NULL) {
+> +		pr_err("Cannot start Locking SP session without a key\n");
+> +		return -EINVAL;
+> +	}
+> +
+> +	cmd = &dev->cmd;
+> +	clear_opal_cmd(cmd);
+> +
+> +	set_comID(cmd, dev->comID);
+> +	HSN = 0x41;
+> +
+> +	smuid = OPALUID[OPAL_SMUID_UID];
+> +	method = OPALMETHOD[OPAL_STARTSESSION];
+> +	locking_sp = OPALUID[OPAL_LOCKINGSP_UID];
+> +	hsa = OPALUID[auth];
+> +
+> +	ret = test_and_add_token_va(cmd, "c2s cusc 2csc 2csc c",
+> +				    OPAL_CALL,
+> +				    smuid, OPAL_UID_LENGTH,
+> +				    method, OPAL_METHOD_LENGTH,
+> +
+> +				    OPAL_STARTLIST,
+> +				    HSN,
+> +				    locking_sp, OPAL_UID_LENGTH,
+> +				    OPAL_TINY_UINT_01,
+> +
+> +				    OPAL_STARTNAME,
+> +				    OPAL_TINY_UINT_00, /* HostChallenge */
+> +				    key, klen,
+> +				    OPAL_ENDNAME,
+> +
+> +				    OPAL_STARTNAME,
+> +				    OPAL_TINY_UINT_03, /* Host Sign Authority */
+> +				    hsa, OPAL_UID_LENGTH,
+> +				    OPAL_ENDNAME,
+> +
+> +				    OPAL_ENDLIST);
+> +
+> +	if (ret < 0) {
+> +		pr_err("%s: Error building start adminsp session command.\n",
+> +		       dev->disk_name);
+> +		return ret;
+> +	}
+> +	return finalize_and_send(dev, cmd, start_opal_session_cont);
+> +}
+> +
+> +static inline int start_admin1LSP_opal_session(struct opal_dev *dev)
+> +{
+> +	return start_lockingsp_opal_session(dev, OPAL_ADMIN1_UID,
+> +					    dev->key, dev->key_len);
+> +}
+> +
+> +static int start_auth_opal_session(struct opal_dev *dev)
+> +{
+> +	const u8 *method, *smuid, *locking_sp;
+> +	u8 lk_ul_user[OPAL_UID_LENGTH];
+> +	struct opal_cmd *cmd;
+> +	u32 HSN;
+> +	int ret;
+> +	struct opal_user_info *uinfo;
+> +
+> +	cmd = &dev->cmd;
+> +	clear_opal_cmd(cmd);
+> +
+> +	set_comID(cmd, dev->comID);
+> +
+> +	HSN = 0x41;
+Can we #define this; it's used a few other places and is magicky
+
+> +
+> +	uinfo = dev->func_data[dev->state - 1];
+> +
+> +	smuid = OPALUID[OPAL_SMUID_UID];
+> +	method = OPALMETHOD[OPAL_STARTSESSION];
+> +	locking_sp = OPALUID[OPAL_LOCKINGSP_UID];
+> +
+> +	if (uinfo->SUM) {
+> +		ret = build_locking_user(lk_ul_user, sizeof(lk_ul_user),
+> +					 dev->lr);
+> +		if (ret < 0) {
+> +			pr_err("%s: Can't build locking user\n",
+> +			       dev->disk_name);
+> +			return ret;
+> +		}
+> +	} else if (uinfo->who != OPAL_ADMIN1 && !uinfo->SUM) {
+> +		ret = build_locking_user(lk_ul_user, sizeof(lk_ul_user),
+> +					 uinfo->who - 1);
+> +		if (ret < 0) {
+> +			pr_err("%s: Can't build locking user\n",
+> +			       dev->disk_name);
+> +			return ret;
+> +		}
+> +	} else
+> +		memcpy(lk_ul_user, OPALUID[OPAL_ADMIN1_UID], OPAL_UID_LENGTH);
+> +
+> +
+> +	ret = test_and_add_token_va(cmd, "c2s cus3cs3c s 2c",
+> +				    OPAL_CALL,
+> +				    smuid, OPAL_UID_LENGTH,
+> +				    method, OPAL_METHOD_LENGTH,
+> +
+> +				    OPAL_STARTLIST,
+> +				    HSN,
+> +				    locking_sp, OPAL_UID_LENGTH,
+> +				    OPAL_TINY_UINT_01,
+> +				    OPAL_STARTNAME,
+> +				    OPAL_TINY_UINT_00,
+> +				    dev->key, dev->key_len,
+> +				    OPAL_ENDNAME,
+> +				    OPAL_STARTNAME,
+> +				    OPAL_TINY_UINT_03,
+> +
+> +				    lk_ul_user, OPAL_UID_LENGTH,
+> +
+> +				    OPAL_ENDNAME,
+> +				    OPAL_ENDLIST);
+> +
+> +	if (ret < 0) {
+> +		pr_err("%s: Error building STARTSESSION command.\n",
+> +		       dev->disk_name);
+> +		return ret;
+> +	}
+> +
+> +	return finalize_and_send(dev, cmd, start_opal_session_cont);
+> +}
+> +
+> +static int revert_tper(struct opal_dev *dev)
+> +{
+> +	const u8 *method, *smuid;
+> +	struct opal_cmd *cmd;
+> +	int ret;
+> +
+> +	cmd = &dev->cmd;
+> +	clear_opal_cmd(cmd);
+> +
+> +	set_comID(cmd, dev->comID);
+> +
+> +	smuid = OPALUID[OPAL_ADMINSP_UID];
+> +	method = OPALMETHOD[OPAL_REVERT];
+> +
+> +	ret = test_and_add_token_va(cmd, "c2s 2c",
+> +				    OPAL_CALL,
+> +				    smuid, OPAL_UID_LENGTH,
+> +				    method, OPAL_METHOD_LENGTH,
+> +				    OPAL_STARTLIST,
+> +				    OPAL_ENDLIST);
+> +	if (ret < 0) {
+> +		pr_err("%s: Error building REVERT TPER command.\n",
+> +		       dev->disk_name);
+> +		return ret;
+> +	}
+> +
+> +	return finalize_and_send(dev, cmd, generic_cont);
+> +}
+> +
+> +static int internal_activate_user(struct opal_dev *dev)
+> +{
+> +	const u8 *method;
+> +	u8 uid[OPAL_UID_LENGTH];
+> +	struct opal_cmd *cmd;
+> +	int ret;
+> +	struct opal_activate_user *act;
+> +
+> +	cmd = &dev->cmd;
+> +	clear_opal_cmd(cmd);
+> +	set_comID(cmd, dev->comID);
+> +
+> +	act = dev->func_data[dev->state - 1];
+> +
+> +	memcpy(uid, OPALUID[OPAL_USER1_UID], OPAL_UID_LENGTH);
+> +	uid[7] = act->who.who;
+> +
+> +	method = OPALMETHOD[OPAL_SET];
+> +
+> +	ret = test_and_add_token_va(cmd, "c2s 3c c 4c 3c",
+> +				    OPAL_CALL,
+> +				    uid, OPAL_UID_LENGTH,
+> +				    method, OPAL_METHOD_LENGTH,
+> +
+> +				    OPAL_STARTLIST,
+> +				    OPAL_STARTNAME,
+> +				    OPAL_TINY_UINT_01, /* Values */
+> +
+> +				    OPAL_STARTLIST,
+> +
+> +				    OPAL_STARTNAME,
+> +				    OPAL_TINY_UINT_05, /* Enabled */
+> +				    OPAL_TINY_UINT_01, /* True */
+> +				    OPAL_ENDNAME,
+> +
+> +				    OPAL_ENDLIST,
+> +				    OPAL_ENDNAME,
+> +				    OPAL_ENDLIST);
+> +
+> +	if (ret < 0) {
+> +		pr_err("%s: Error building Activate UserN command.\n",
+> +		       dev->disk_name);
+> +		return ret;
+> +	}
+> +
+> +	return finalize_and_send(dev, cmd, generic_cont);
+> +}
+> +
+> +static int erase_locking_range(struct opal_dev *dev)
+> +{
+> +	const u8 *method;
+> +	u8 uid[OPAL_UID_LENGTH];
+> +	struct opal_cmd *cmd;
+> +	int ret;
+> +
+> +	cmd = &dev->cmd;
+> +	clear_opal_cmd(cmd);
+> +	set_comID(cmd, dev->comID);
+> +
+> +	method = OPALMETHOD[OPAL_ERASE];
+> +
+> +	if (build_locking_range(uid, sizeof(uid), dev->lr) < 0) {
+> +		pr_err("%s: Can't build locking range\n", dev->disk_name);
+> +		return -EINVAL;
+> +	}
+> +
+> +	ret = test_and_add_token_va(cmd, "c2s 2c",
+> +				    OPAL_CALL,
+> +				    uid, OPAL_UID_LENGTH,
+> +				    method, OPAL_METHOD_LENGTH,
+> +
+> +				    OPAL_STARTLIST,
+> +				    OPAL_ENDLIST);
+> +
+> +	if (ret < 0) {
+> +		pr_err("%s: Error building Erase Locking Range Cmmand.\n",
+> +		       dev->disk_name);
+> +		return ret;
+> +	}
+> +	return finalize_and_send(dev, cmd, generic_cont);
+> +}
+> +
+> +static int set_mbr_done(struct opal_dev *dev)
+> +{
+> +	const u8 *method, *uid;
+> +	struct opal_cmd *cmd;
+> +	int ret;
+> +
+> +	u8 mbr_done_tf = *(u8 *)dev->func_data[dev->state - 1];
+> +
+> +	cmd = &dev->cmd;
+> +	clear_opal_cmd(cmd);
+> +	set_comID(cmd, dev->comID);
+> +
+> +	method = OPALMETHOD[OPAL_SET];
+> +	uid = OPALUID[OPAL_MBRCONTROL];
+> +
+> +	ret = test_and_add_token_va(cmd, "c2s 3c 6c 2c",
+> +				    OPAL_CALL,
+> +				    uid, OPAL_UID_LENGTH,
+> +				    method, OPAL_METHOD_LENGTH,
+> +
+> +				    OPAL_STARTLIST,
+> +				    OPAL_STARTNAME,
+> +				    OPAL_VALUES,
+> +
+> +				    OPAL_STARTLIST,
+> +				    OPAL_STARTNAME,
+> +				    OPAL_TINY_UINT_02, /* Done */
+> +				    mbr_done_tf,       /* Done T or F */
+> +				    OPAL_ENDNAME,
+> +				    OPAL_ENDLIST,
+> +
+> +				    OPAL_ENDNAME,
+> +				    OPAL_ENDLIST);
+> +	if (ret < 0) {
+> +		pr_err("%s: Error Building set MBR Dont/Not done command\n",
+s/Dont/Done/ ?
+
+
+> +		       dev->disk_name);
+> +		return ret;
+> +	}
+> +
+> +	return finalize_and_send(dev, cmd, generic_cont);
+> +}
+> +
+> +static int set_mbr_enable_disable(struct opal_dev *dev)
+> +{
+> +	const u8 *method, *uid;
+> +	struct opal_cmd *cmd;
+> +	int ret;
+> +
+> +	u8 mbr_en_dis = *(u8 *)dev->func_data[dev->state - 1];
+> +
+> +	cmd = &dev->cmd;
+> +	clear_opal_cmd(cmd);
+> +	set_comID(cmd, dev->comID);
+> +
+> +	method = OPALMETHOD[OPAL_SET];
+> +	uid = OPALUID[OPAL_MBRCONTROL];
+> +
+> +	ret = test_and_add_token_va(cmd, "c2s 3c 6c 2c",
+> +				    OPAL_CALL,
+> +				    uid, OPAL_UID_LENGTH,
+> +				    method, OPAL_METHOD_LENGTH,
+> +
+> +				    OPAL_STARTLIST,
+> +				    OPAL_STARTNAME,
+> +				    OPAL_VALUES,
+> +
+> +				    OPAL_STARTLIST,
+> +				    OPAL_STARTNAME,
+> +				    OPAL_TINY_UINT_01, /* Enable */
+> +				    mbr_en_dis,        /* Enable or Disable */
+> +				    OPAL_ENDNAME,
+> +				    OPAL_ENDLIST,
+> +
+> +				    OPAL_ENDNAME,
+> +				    OPAL_ENDLIST);
+> +	if (ret < 0) {
+> +		pr_err("%s: Error Building set MBR Dont/Not done command\n",
+s/Dont/Done/ ?
+
+
+> +		       dev->disk_name);
+> +		return ret;
+> +	}
+> +
+> +	return finalize_and_send(dev, cmd, generic_cont);
+> +}
+> +
+> +static int set_new_pw(struct opal_dev *dev)
+> +{
+> +	const u8 *method;
+> +	u8 cpin_uid[OPAL_UID_LENGTH];
+> +	struct opal_cmd *cmd;
+> +	int ret;
+> +	struct opal_new_pw *pw;
+> +	size_t key_len;
+> +	u8 *key;
+> +
+> +	cmd = &dev->cmd;
+> +	clear_opal_cmd(cmd);
+> +	set_comID(cmd, dev->comID);
+> +
+> +	pw = dev->func_data[dev->state - 1];
+> +	key = pw->new_pin.key;
+> +	key_len = pw->new_pin.key_len;
+> +	memcpy(cpin_uid, OPALUID[OPAL_C_PIN_ADMIN1], OPAL_UID_LENGTH);
+> +
+> +	if (pw->user_for_pw != OPAL_ADMIN1) {
+> +		cpin_uid[5] = 0x03;
+> +		if (pw->who.SUM)
+> +			cpin_uid[7] = pw->new_pin.lr + 1;
+> +		else
+> +			cpin_uid[7] = pw->user_for_pw;
+> +	}
+> +
+> +	method = OPALMETHOD[OPAL_SET];
+> +
+> +	ret = test_and_add_token_va(cmd, "c2s 3c 3cs2c 2c",
+> +				    OPAL_CALL,
+> +				    cpin_uid, OPAL_UID_LENGTH,
+> +				    method, OPAL_METHOD_LENGTH,
+> +
+> +				    OPAL_STARTLIST,
+> +				    OPAL_STARTNAME,
+> +				    OPAL_TINY_UINT_01, /* Values */
+> +
+> +				    OPAL_STARTLIST,
+> +				    OPAL_STARTNAME,
+> +				    OPAL_TINY_UINT_03, /* PIN */
+> +				    key, key_len,
+> +				    OPAL_ENDNAME,
+> +				    OPAL_ENDLIST,
+> +
+> +				    OPAL_ENDNAME,
+> +				    OPAL_ENDLIST);
+> +
+> +	if (ret < 0) {
+> +		pr_err("%s: Error building SET AMIN1 PIN command.\n",
+> +		       dev->disk_name);
+> +		return ret;
+> +	}
+> +
+> +	return finalize_and_send(dev, cmd, generic_cont);
+> +}
+> +
+> +static int set_sid_cpin_pin(struct opal_dev *dev)
+> +{
+> +	const u8 *method, *cpin_uid;
+> +	struct opal_cmd *cmd;
+> +	int ret;
+> +
+> +	cmd = &dev->cmd;
+> +	clear_opal_cmd(cmd);
+> +	set_comID(cmd, dev->comID);
+> +
+> +	cpin_uid = OPALUID[OPAL_C_PIN_SID];
+> +	method = OPALMETHOD[OPAL_SET];
+> +
+> +	ret = test_and_add_token_va(cmd, "c2s 2c 4cs2c 2c",
+> +				    OPAL_CALL,
+> +				    cpin_uid, OPAL_UID_LENGTH,
+> +				    method, OPAL_METHOD_LENGTH,
+> +
+> +				    OPAL_STARTLIST,
+> +				    OPAL_STARTNAME,
+> +
+> +				    OPAL_TINY_UINT_01, /* Values */
+> +				    OPAL_STARTLIST,
+> +				    OPAL_STARTNAME,
+> +				    OPAL_TINY_UINT_03, /* PIN */
+> +				    dev->key, dev->key_len,
+> +				    OPAL_ENDNAME,
+> +				    OPAL_ENDLIST,
+> +
+> +				    OPAL_ENDNAME,
+> +				    OPAL_ENDLIST);
+> +
+> +	if (ret < 0) {
+> +		pr_err("%s: Error building SET CPIN PIN command.\n",
+> +		       dev->disk_name);
+> +		return ret;
+> +	}
+> +
+> +	return finalize_and_send(dev, cmd, generic_cont);
+> +}
+> +
+> +static void query_locking_range_cont(int error, void *data)
+> +{
+> +	struct opal_dev *dev = data;
+> +
+> +	if (error)
+> +		goto err_return;
+> +
+> +	error = parse_and_check_status(dev);
+> +	if (error)
+> +		goto err_return;
+> +
+> +	dev->start = response_get_u64(&dev->parsed, 4);
+> +	dev->length = response_get_u64(&dev->parsed, 8);
+> +
+> +err_return:
+> +	if (dev->oper_cb)
+> +		dev->oper_cb(error, dev);
+> +}
+> +
+> +static int query_locking_range(struct opal_dev *dev)
+> +{
+> +	u8 lr_buffer[OPAL_UID_LENGTH];
+> +	struct opal_cmd *cmd;
+> +	const u8 *method;
+> +	int ret;
+> +
+> +	cmd = &dev->cmd;
+> +	clear_opal_cmd(cmd);
+> +
+> +	method = OPALMETHOD[OPAL_GET];
+> +
+> +	if (build_locking_range(lr_buffer, sizeof(lr_buffer), dev->lr) < 0) {
+> +		pr_err("%s: Can't build locking range\n", dev->disk_name);
+> +		return -EINVAL;
+> +	}
+> +
+> +	set_comID(cmd, dev->comID);
+> +
+> +	ret = test_and_add_token_va(cmd, "c2s 12c",
+> +				    OPAL_CALL,
+> +				    lr_buffer, OPAL_UID_LENGTH,
+> +				    method, OPAL_METHOD_LENGTH,
+> +
+> +				    OPAL_STARTLIST,
+> +				    OPAL_STARTLIST,
+> +				    OPAL_STARTNAME,
+> +				    OPAL_STARTCOLUMN,
+> +				    OPAL_RANGESTART,
+> +				    OPAL_ENDNAME,
+> +				    OPAL_STARTNAME,
+> +				    OPAL_ENDCOLUMN,
+> +				    OPAL_RANGELENGTH,
+> +				    OPAL_ENDNAME,
+> +				    OPAL_ENDLIST,
+> +				    OPAL_ENDLIST);
+> +
+> +	if (ret < 0) {
+> +		pr_err("%s: Error building GET Locking Range command.\n",
+> +		       dev->disk_name);
+> +		return ret;
+> +	}
+> +
+> +	return finalize_and_send(dev, cmd, query_locking_range_cont);
+> +}
+> +
+> +static int add_user_to_lr(struct opal_dev *dev)
+> +{
+> +	u8 lr_buffer[OPAL_UID_LENGTH];
+> +	u8 user_uid[OPAL_UID_LENGTH];
+> +	struct opal_cmd *cmd;
+> +	const u8 *method;
+> +	struct opal_lock_unlock *lkul;
+> +	int ret;
+> +
+> +	cmd = &dev->cmd;
+> +	clear_opal_cmd(cmd);
+> +	set_comID(cmd, dev->comID);
+> +
+> +	method = OPALMETHOD[OPAL_SET];
+> +
+> +	lkul = dev->func_data[dev->state - 1];
+> +
+> +	memcpy(lr_buffer, OPALUID[OPAL_LOCKINGRANGE_ACE_RDLOCKED],
+> +	       OPAL_UID_LENGTH);
+> +
+> +	if (lkul->l_state == OPAL_RW)
+> +		memcpy(lr_buffer, OPALUID[OPAL_LOCKINGRANGE_ACE_WRLOCKED],
+> +		       OPAL_UID_LENGTH);
+> +
+> +	lr_buffer[7] = dev->lr;
+> +
+> +	memcpy(user_uid, OPALUID[OPAL_USER1_UID], OPAL_UID_LENGTH);
+> +	user_uid[7] = lkul->authority.who;
+> +
+> +	ret = test_and_add_token_va(cmd, "c2s 3c 3c 2c 2sc c2sc cs2c 5c",
+> +				    OPAL_CALL,
+> +				    lr_buffer, OPAL_UID_LENGTH,
+> +				    method, OPAL_METHOD_LENGTH,
+> +
+> +				    OPAL_STARTLIST,
+> +				    OPAL_STARTNAME,
+> +				    OPAL_TINY_UINT_01, /* Values */
+> +
+> +				    OPAL_STARTLIST,
+> +				    OPAL_STARTNAME,
+> +				    OPAL_TINY_UINT_03, /* BooleanExpr */
+> +
+> +				    OPAL_STARTLIST,
+> +				    OPAL_STARTNAME,
+> +
+> +				    OPALUID[OPAL_HALF_UID_AUTHORITY_OBJ_REF],
+> +				    OPAL_UID_LENGTH_HALF,
+> +				    user_uid, OPAL_UID_LENGTH,
+> +				    OPAL_ENDNAME,
+> +
+> +				    OPAL_STARTNAME,
+> +				    OPALUID[OPAL_HALF_UID_AUTHORITY_OBJ_REF],
+> +				    OPAL_UID_LENGTH_HALF,
+> +				    user_uid, OPAL_UID_LENGTH,
+> +				    OPAL_ENDNAME,
+> +
+> +				    OPAL_STARTNAME,
+> +				    OPALUID[OPAL_HALF_UID_BOOLEAN_ACE],
+> +				    OPAL_UID_LENGTH_HALF,
+> +				    OPAL_TINY_UINT_01,
+> +				    OPAL_ENDNAME,
+> +
+> +				    OPAL_ENDLIST,
+> +				    OPAL_ENDNAME,
+> +				    OPAL_ENDLIST,
+> +				    OPAL_ENDNAME,
+> +				    OPAL_ENDLIST);
+> +	if (ret < 0) {
+> +		pr_err("%s: Error building add user to locking range command.\n",
+> +		       dev->disk_name);
+> +		return ret;
+> +	}
+> +
+> +	return finalize_and_send(dev, cmd, generic_cont);
+> +}
+> +
+> +static int lock_unlock_locking_range(struct opal_dev *dev)
+> +{
+> +	u8 lr_buffer[OPAL_UID_LENGTH];
+> +	struct opal_cmd *cmd;
+> +	const u8 *method;
+> +	struct opal_lock_unlock *lkul;
+> +	int ret;
+> +	u8 read_locked = 1, write_locked = 1;
+> +
+> +	cmd = &dev->cmd;
+> +	clear_opal_cmd(cmd);
+> +	set_comID(cmd, dev->comID);
+> +
+> +	method = OPALMETHOD[OPAL_SET];
+> +	lkul = dev->func_data[dev->state - 1];
+> +	if (build_locking_range(lr_buffer, sizeof(lr_buffer), dev->lr) < 0) {
+> +		pr_err("%s: Can't build locking range\n", dev->disk_name);
+> +		return -EINVAL;
+> +	}
+> +
+> +	switch (lkul->l_state) {
+> +	case OPAL_RO:
+> +		read_locked = 0;
+> +		write_locked = 1;
+> +		break;
+> +	case OPAL_RW:
+> +		read_locked = 0;
+> +		write_locked = 0;
+> +		break;
+> +	case OPAL_LK:
+> +		/* vars are initalized to locked */
+> +		break;
+> +	default:
+> +		pr_err("Tried to set an invalid locking state... returning to uland\n");
+> +		return 1;
+> +	}
+> +
+> +	ret = test_and_add_token_va(cmd, "c2sc 3c 4c 4c 3c",
+> +				    OPAL_CALL,
+> +				    lr_buffer, OPAL_UID_LENGTH,
+> +				    method, OPAL_METHOD_LENGTH,
+> +				    OPAL_STARTLIST,
+> +
+> +				    OPAL_STARTNAME,
+> +				    OPAL_VALUES,
+> +				    OPAL_STARTLIST,
+> +
+> +				    OPAL_STARTNAME,
+> +				    OPAL_READLOCKED,
+> +				    read_locked,
+> +				    OPAL_ENDNAME,
+> +
+> +				    OPAL_STARTNAME,
+> +				    OPAL_WRITELOCKED,
+> +				    write_locked,
+> +				    OPAL_ENDNAME,
+> +
+> +				    OPAL_ENDLIST,
+> +				    OPAL_ENDNAME,
+> +				    OPAL_ENDLIST);
+> +
+> +	if (ret < 0) {
+> +		pr_err("%s: Error building SET command.\n", dev->disk_name);
+> +		return ret;
+> +	}
+> +	return finalize_and_send(dev, cmd, generic_cont);
+> +}
+> +
+> +
+> +static int lock_unlock_locking_range_SUM(struct opal_dev *dev)
+> +{
+> +	u8 lr_buffer[OPAL_UID_LENGTH];
+> +	struct opal_cmd *cmd;
+> +	const u8 *method;
+> +	struct opal_lock_unlock *lkul;
+> +	int ret;
+> +	u8 read_locked = 1, write_locked = 1;
+> +
+> +	cmd = &dev->cmd;
+> +	clear_opal_cmd(cmd);
+> +	set_comID(cmd, dev->comID);
+> +
+> +	method = OPALMETHOD[OPAL_SET];
+> +	lkul = dev->func_data[dev->state - 1];
+> +	if (build_locking_range(lr_buffer, sizeof(lr_buffer), dev->lr) < 0) {
+> +		pr_err("%s: Can't build locking range\n", dev->disk_name);
+> +		return -EINVAL;
+> +	}
+> +
+> +	switch (lkul->l_state) {
+> +	case OPAL_RO:
+> +		read_locked = 0;
+> +		write_locked = 1;
+> +		break;
+> +	case OPAL_RW:
+> +		read_locked = 0;
+> +		write_locked = 0;
+> +		break;
+> +	case OPAL_LK:
+> +		/* vars are initalized to locked */
+> +		break;
+> +	default:
+> +		pr_err("Tried to set an invalid locking state.\n");
+> +		return 1;
+> +	}
+> +
+> +	ret = test_and_add_token_va(cmd, "c2sc 3c 4c 4c 4c 4c 3c",
+> +				    OPAL_CALL,
+> +				    lr_buffer, OPAL_UID_LENGTH,
+> +				    method, OPAL_METHOD_LENGTH,
+> +				    OPAL_STARTLIST,
+> +
+> +				    OPAL_STARTNAME,
+> +				    OPAL_VALUES,
+> +				    OPAL_STARTLIST,
+> +
+> +				    OPAL_STARTNAME,
+> +				    OPAL_READLOCKENABLED,
+> +				    OPAL_TRUE,
+> +				    OPAL_ENDNAME,
+> +
+> +				    OPAL_STARTNAME,
+> +				    OPAL_WRITELOCKENABLED,
+> +				    OPAL_TRUE,
+> +				    OPAL_ENDNAME,
+> +
+> +				    OPAL_STARTNAME,
+> +				    OPAL_READLOCKED,
+> +				    read_locked,
+> +				    OPAL_ENDNAME,
+> +
+> +				    OPAL_STARTNAME,
+> +				    OPAL_WRITELOCKED,
+> +				    write_locked,
+> +				    OPAL_ENDNAME,
+> +
+> +				    OPAL_ENDLIST,
+> +				    OPAL_ENDNAME,
+> +				    OPAL_ENDLIST);
+> +	if (ret < 0) {
+> +		pr_err("%s: Error building SET command.\n", dev->disk_name);
+> +		return ret;
+> +	}
+> +	return finalize_and_send(dev, cmd, generic_cont);
+> +}
+> +
+> +int activate_lsp(struct opal_dev *dev)
+> +{
+> +	u8 user_lr[OPAL_UID_LENGTH];
+> +	const u8 *method, *uid;
+> +	struct opal_cmd *cmd;
+> +	int ret;
+> +	size_t uint_3 = 0x83;
+> +
+> +	cmd = &dev->cmd;
+> +
+> +	clear_opal_cmd(cmd);
+> +	set_comID(cmd, dev->comID);
+> +
+> +	uid = OPALUID[OPAL_LOCKINGSP_UID];
+> +	method = OPALMETHOD[OPAL_ACTIVATE];
+> +
+> +	ret = test_and_add_token_va(cmd, "c2s",
+> +				    OPAL_CALL,
+> +				    uid, OPAL_UID_LENGTH,
+> +				    method, OPAL_METHOD_LENGTH);
+> +	if (ret < 0) {
+> +		pr_err("%s: Error building Activate LockingSP command.\n",
+> +		       dev->disk_name);
+> +		return ret;
+> +	}
+> +	/* Activating as SUM */
+> +	if (dev->lr > 0) {
+> +		ret = build_locking_range(user_lr, sizeof(user_lr), dev->lr);
+> +		if (ret < 0) {
+> +			pr_err("%s: Can't build locking user\n",
+> +			       dev->disk_name);
+> +			return ret;
+> +		}
+> +		test_and_add_token_va(cmd, "2c 4c csc 2c",
+> +				      OPAL_STARTLIST,
+> +				      OPAL_STARTNAME,
+> +
+> +				      uint_3,
+> +				      OPAL_TINY_UINT_06,
+> +				      OPAL_TINY_UINT_00,
+> +				      OPAL_TINY_UINT_00,
+> +
+> +				      OPAL_STARTLIST,
+> +				      user_lr, OPAL_UID_LENGTH,
+> +				      OPAL_ENDLIST,
+> +
+> +				      OPAL_ENDNAME,
+> +				      OPAL_ENDLIST);
+> +	} else /* Actiave Normal Mode */
+> +		ret = test_and_add_token_va(cmd, "2c",
+> +					    OPAL_STARTLIST,
+> +					    OPAL_ENDLIST);
+> +
+> +	if (ret < 0) {
+> +		pr_err("%s: Error building Activate LockingSP command.\n",
+> +		       dev->disk_name);
+> +		return ret;
+> +	}
+> +
+> +	return finalize_and_send(dev, cmd, generic_cont);
+> +}
+> +
+> +static void get_lsp_lifecycle_cont(int error, void *data)
+> +{
+> +
+> +	struct opal_dev *dev = data;
+> +	u8 lc_status;
+> +
+> +	if (error)
+> +		goto err_return;
+> +
+> +	error = parse_and_check_status(dev);
+> +	if (error)
+> +		goto err_return;
+> +
+> +	lc_status = response_get_u64(&dev->parsed, 4);
+> +	/* 0x08 is Manufacured Inactive */
+> +	/* 0x09 is Manufactured */
+> +	if (lc_status != 0x08) {
+> +		pr_err("%s: Couldn't determine the status of the Lifcycle state\n",
+> +		       dev->disk_name);
+> +		error = -ENODEV;
+> +	}
+> +
+> +err_return:
+> +	if (dev->oper_cb)
+> +		dev->oper_cb(error, dev);
+> +}
+> +
+> +/* Determine if we're in the Manufactured Inactive or Active state */
+> +int get_lsp_lifecycle(struct opal_dev *dev)
+> +{
+> +	struct opal_cmd *cmd;
+> +	const u8 *method, *uid;
+> +	int ret;
+> +
+> +	cmd = &dev->cmd;
+> +
+> +	clear_opal_cmd(cmd);
+> +	set_comID(cmd, dev->comID);
+> +
+> +	uid = OPALUID[OPAL_LOCKINGSP_UID];
+> +	method = OPALMETHOD[OPAL_GET];
+> +
+> +	ret = test_and_add_token_va(cmd, "c2s 2c 4c 4c 2c",
+> +				    OPAL_CALL,
+> +				    uid, OPAL_UID_LENGTH,
+> +				    method, OPAL_METHOD_LENGTH,
+> +
+> +				    OPAL_STARTLIST,
+> +				    OPAL_STARTLIST,
+> +
+> +				    OPAL_STARTNAME,
+> +				    OPAL_TINY_UINT_03, /* Start Column */
+> +				    OPAL_TINY_UINT_06, /* Lifcycle Column */
+> +				    OPAL_ENDNAME,
+> +
+> +				    OPAL_STARTNAME,
+> +				    OPAL_TINY_UINT_04, /* End Column */
+> +				    OPAL_TINY_UINT_06, /* Lifecycle Column */
+> +				    OPAL_ENDNAME,
+> +
+> +				    OPAL_ENDLIST,
+> +				    OPAL_ENDLIST);
+> +
+> +	if (ret < 0) {
+> +		pr_err("%s: Error Building GET Lifecycle Status command\n",
+> +		       dev->disk_name);
+> +		return ret;
+> +	}
+> +
+> +	return finalize_and_send(dev, cmd, get_lsp_lifecycle_cont);
+> +}
+> +
+> +static void get_msid_cpin_pin_cont(int error, void *data)
+> +{
+> +	const char *msid_pin;
+> +	struct opal_dev *dev = data;
+> +	size_t strlen;
+> +
+> +	if (error)
+> +		goto err_return;
+> +
+> +	error = parse_and_check_status(dev);
+> +	if (error)
+> +		goto err_return;
+> +
+> +	strlen = response_get_string(&dev->parsed, 4, &msid_pin);
+> +	if (!msid_pin) {
+> +		pr_err("%s: Couldn't extract PIN from response\n", __func__);
+> +		error = 1;
+> +		goto err_return;
+> +	}
+> +
+> +	dev->prev_data = kmemdup(msid_pin, strlen, GFP_KERNEL);
+> +	if (!dev->prev_data)
+> +		error = -ENOMEM;
+> +
+> +	dev->prev_d_len = strlen;
+> +
+> + err_return:
+> +	if (dev->oper_cb)
+> +		dev->oper_cb(error, dev);
+> +}
+> +
+> +static int get_msid_cpin_pin(struct opal_dev *dev)
+> +{
+> +	const u8 *method, *smuid;
+> +	int ret;
+> +	struct opal_cmd *cmd;
+> +
+> +	cmd = &dev->cmd;
+> +	clear_opal_cmd(cmd);
+> +	set_comID(cmd, dev->comID);
+> +
+> +	smuid = OPALUID[OPAL_C_PIN_MSID];
+> +	method = OPALMETHOD[OPAL_GET];
+> +
+> +	ret = test_and_add_token_va(cmd, "c 2s 12c",
+> +				    OPAL_CALL,
+> +
+> +				    smuid, OPAL_UID_LENGTH,
+> +				    method, OPAL_METHOD_LENGTH,
+> +
+> +				    OPAL_STARTLIST,
+> +				    OPAL_STARTLIST,
+> +				    OPAL_STARTNAME,
+> +				    OPAL_TINY_UINT_03, /* Sart Column */
+> +				    OPAL_TINY_UINT_03, /* PIN */
+> +				    OPAL_ENDNAME,
+> +				    OPAL_STARTNAME,
+> +				    OPAL_TINY_UINT_04, /* End Column */
+> +				    OPAL_TINY_UINT_03, /* PIN */
+> +				    OPAL_ENDNAME,
+> +				    OPAL_ENDLIST,
+> +				    OPAL_ENDLIST);
+> +
+> +	if (ret < 0) {
+> +		pr_err("%s: Error building Get MSID CPIN PIN command.\n",
+> +		       dev->disk_name);
+> +		return ret;
+> +	}
+> +
+> +	return finalize_and_send(dev, cmd, get_msid_cpin_pin_cont);
+> +}
+> +
+> +static void unlock_suspend_final(int error, void *data)
+> +{
+> +	struct opal_dev *dev = data;
+> +
+> +	dev->resume_from_suspend = false;
+> +	dev->resume_data = NULL;
+> +	dev->func_data = NULL;
+> +	dev->bdev = NULL;
+> +}
+> +
+> +static int build_end_opal_session(struct opal_dev *dev)
+> +{
+> +	struct opal_cmd *cmd;
+> +
+> +	cmd = &dev->cmd;
+> +	clear_opal_cmd(cmd);
+> +
+> +	set_comID(cmd, dev->comID);
+> +	return test_and_add_token_u8(cmd, OPAL_ENDOFSESSION);
+> +}
+> +
+> +static int end_opal_session(struct opal_dev *dev)
+> +{
+> +	if (build_end_opal_session(dev) < 0)
+> +		return -1;
+> +	return finalize_and_send(dev, &dev->cmd, end_session_cont);
+> +}
+Any reason we cant:
+
+int ret = build_...
+if (ret < 0)
+	return ret;
+
+
+> +
+> +static struct opal_dev *find_opal_dev(struct block_device *bdev, u8 lr)
+> +{
+> +	struct opal_dev *iter, *opal_dev = NULL;
+> +
+> +	list_for_each_entry(iter, &opal_list, node) {
+> +		if (strncmp(iter->disk_name, bdev->bd_disk->disk_name,
+> +			    DISK_NAME_LEN))
+> +			continue;
+> +		if (iter->lr == lr) {
+> +			opal_dev = iter;
+> +			break;
+> +		}
+> +	}
+> +
+> +	return opal_dev;
+> +}
+> +
+> +static int update_opal_dev(struct opal_dev *old_dev, struct opal_dev *new_dev)
+> +{
+> +	if (!atomic_add_unless(&old_dev->in_use, 1, 1)) {
+> +		pr_err("%s: dev was in use\n", __func__);
+> +		return -EBUSY;
+> +	}
+> +
+> +	old_dev->key_name_len = new_dev->key_name_len;
+> +	if (!memcpy(old_dev->key_name, new_dev->key_name, old_dev->key_name_len)) {
+> +		pr_err("%s: Error updating device:\n", old_dev->disk_name);
+> +		return -EFAULT;
+> +	}
+> +
+> +	if (!strncpy(old_dev->disk_name, new_dev->disk_name, DISK_NAME_LEN)) {
+> +		pr_err("%s: Error registering device: copying disk name\n",
+> +		       old_dev->disk_name);
+> +		return -EFAULT;
+> +	}
+> +
+> +	old_dev->comID = new_dev->comID;
+> +	old_dev->start = new_dev->start;
+> +	old_dev->length = new_dev->length;
+> +	old_dev->align = new_dev->align;
+> +	old_dev->lowest_lba = new_dev->lowest_lba;
+> +	old_dev->bdev = NULL;
+> +	old_dev->final_cb = new_dev->final_cb;
+> +	old_dev->final_cb_data = new_dev->final_cb_data;
+> +	old_dev->oper_cb = new_dev->oper_cb;
+> +	old_dev->state = new_dev->state;
+> +	old_dev->funcs = new_dev->funcs;
+> +
+> +	kfree(old_dev->completion);
+> +	clean_function_data(old_dev);
+> +
+> +	old_dev->completion = new_dev->completion;
+> +
+> +	/*
+> +	 * Won't be able to auto unlock this locking range based on block
+> +	 * requestes.
+> +	 */
+> +	if (old_dev->length == 0)
+> +		pr_warn("%s: Missing block information for locking range %d\n",
+> +			old_dev->disk_name, old_dev->lr);
+> +
+> +	return 0;
+> +}
+> +
+> +int opal_register_cont(struct opal_dev *new_dev)
+> +{
+> +	struct opal_dev *old_dev;
+> +	unsigned long flags;
+> +	int error = 0;
+> +
+> +	spin_lock_irqsave(&list_spinlock, flags);
+> +
+> +	old_dev = find_opal_dev(new_dev->bdev, new_dev->lr);
+> +	if (!old_dev) {
+> +		list_add_tail(&new_dev->node, &opal_list);
+> +		old_dev = new_dev;
+> +	} else {
+> +		if (old_dev == new_dev)
+> +			error = 0;
+> +		else {
+> +			error = update_opal_dev(old_dev, new_dev);
+> +			clean_opal_key(new_dev);
+> +			kfree(new_dev);
+> +		}
+> +	}
+> +
+> +	if (error)
+> +		list_del(&old_dev->node);
+> +
+> +	spin_unlock_irqrestore(&list_spinlock, flags);
+> +
+> +	if (!error)
+> +		pr_info("%s: Registered key for locking range: %d\n",
+> +			old_dev->disk_name, old_dev->lr);
+> +
+> +	if (old_dev->oper_cb)
+> +		old_dev->oper_cb(error, old_dev);
+> +
+> +	return 0;
+> +}
+> +
+> +static void next(int error, struct opal_dev *dev)
+> +{
+> +	opal_step func = dev->funcs[dev->state];
+> +	void *cb_data = dev->final_cb_data;
+> +	sec_cb *cb = dev->final_cb;
+> +	bool done = false;
+> +
+> +
+> +	if (error || !func) {
+> +		done = true;
+> +		goto next_exit;
+> +	}
+> +	dev->state++;
+> +	dev->oper_cb = next;
+> +	error = func(dev);
+> + next_exit:
+> +	if (error) {
+> +		pr_err("%s: Error on step function: %d with error %d: %s\n",
+> +		       dev->disk_name, dev->state, error,
+> +		       opal_error_to_human(error));
+> +
+> +
+> +		atomic_dec(&dev->in_use);
+> +		if (dev->error_cb) {
+> +			dev->error_cb(dev->error_cb_data);
+> +			return;
+> +		}
+> +		if (cb)
+> +			cb(error, cb_data);
+> +
+> +		dev->completion->completion_status = error;
+> +		complete(&dev->completion->cmd_completion);
+> +	} else if (!error && done) {
+> +		atomic_dec(&dev->in_use);
+> +		if (cb)
+> +			cb(error, cb_data);
+> +		dev->completion->completion_status = error;
+> +		complete(&dev->completion->cmd_completion);
+> +	}
+> +}
+> +
+> +const opal_step error_end_session[] = {
+> +	end_opal_session,
+> +	NULL,
+> +};
+> +static int end_opal_session_error(struct opal_dev *dev)
+> +{
+> +
+> +	dev->funcs = error_end_session;
+> +	dev->state = 0;
+> +	dev->error_cb = NULL;
+> +	next(0, dev);
+> +	return 0;
+> +}
+> +
+> +static struct opal_dev *alloc_opal_dev(struct block_device *bdev, u8 lr)
+> +{
+> +	struct opal_dev *opal_dev;
+> +	struct request_queue *q;
+> +	unsigned long dma_align;
+> +	const char *disk_name;
+> +	struct opal_cmd *cmd;
+> +	int ret;
+> +
+> +	opal_dev = kzalloc(sizeof(*opal_dev), GFP_KERNEL);
+> +	if (!opal_dev)
+> +		return ERR_PTR(-ENOMEM);
+> +
+> +	opal_dev->bdev = bdev;
+> +	opal_dev->lr = lr;
+> +	cmd = &opal_dev->cmd;
+> +	cmd->cmd = cmd->cmd_buf;
+> +	cmd->resp = cmd->resp_buf;
+> +
+> +	disk_name = bdev->bd_disk->disk_name;
+> +	if (!strncpy(opal_dev->disk_name, disk_name, DISK_NAME_LEN)) {
+> +		pr_err("%s: Error registering device: copying disk name\n",
+> +		       disk_name);
+> +		ret = -EFAULT;
+> +		goto err_free_dev;
+> +	}
+> +
+> +	q = bdev->bd_queue;
+> +	dma_align = (queue_dma_alignment(q) | q->dma_pad_mask) + 1;
+> +	cmd->cmd = (u8 *)round_up((uintptr_t)cmd->cmd, dma_align);
+> +	cmd->resp = (u8 *)round_up((uintptr_t)cmd->resp, dma_align);
+> +
+> +	INIT_LIST_HEAD(&opal_dev->node);
+> +	atomic_set(&opal_dev->in_use, 1);
+> +
+> +	opal_dev->completion = kzalloc(sizeof(*opal_dev->completion),
+> +				       GFP_KERNEL);
+> +
+> +	if (!opal_dev->completion)
+> +		goto err_free_dev;
+> +
+> +	init_completion(&opal_dev->completion->cmd_completion);
+> +	opal_dev->completion->completion_status = 0;
+> +	opal_dev->state = 0;
+> +
+> +	return opal_dev;
+> +
+> +err_free_dev:
+> +	kfree(opal_dev);
+> +	return ERR_PTR(ret);
+> +}
+> +
+> +int opal_register(struct block_device *bdev, struct opal_key *key_cmd,
+> +		  const opal_step *funcs)
+> +{
+> +	struct opal_dev *new_dev = NULL;
+> +	u8 key_len = key_cmd->key_len;
+> +	u8 lr = key_cmd->lr;
+> +	struct opal_completion *completion;
+> +	int ret;
+> +
+> +	new_dev = alloc_opal_dev(bdev, lr);
+> +	if (IS_ERR(new_dev)) {
+> +		pr_err("%s: Error registering device: allocation\n",
+> +		       bdev->bd_disk->disk_name);
+> +		return PTR_ERR(new_dev);
+> +	}
+> +
+> +	if (!memcpy(new_dev->key_name, key_cmd->key, key_len)) {
+> +		pr_err("%s: Error registering key: couldn't copy key\n",
+> +		       new_dev->disk_name);
+> +		return -EFAULT;
+> +	}
+> +
+> +	new_dev->key_name_len = key_len;
+> +	new_dev->key_type = key_cmd->key_type;
+> +	ret = get_opal_key(new_dev);
+> +	if (ret) {
+> +		pr_err("%s: Couldn't get key: %d\n", new_dev->disk_name, ret);
+> +		return ret;
+> +	}
+> +
+> +	new_dev->funcs = funcs;
+> +
+> +	new_dev->state = 0;
+> +	completion = new_dev->completion;
+> +	next(0, new_dev);
+> +
+> +	return wait_for_cmd_completion(completion);
+> +}
+> +
+> +static struct opal_dev *get_registered_opal_dev(struct block_device *bdev,
+> +						u8 lr)
+> +{
+> +	const char *diskname = bdev->bd_disk->disk_name;
+> +	struct opal_dev *iter, *dev = NULL;
+> +	unsigned long flags;
+> +	bool in_use = false;
+> +
+> +	spin_lock_irqsave(&list_spinlock, flags);
+> +	list_for_each_entry(iter, &opal_list, node) {
+> +		if (strncmp(iter->disk_name, diskname, DISK_NAME_LEN))
+> +			continue;
+> +		if (iter->lr == lr) {
+> +			dev = iter;
+> +			if (!atomic_add_unless(&iter->in_use, 1, 1)) {
+> +				dev = NULL;
+> +				in_use = true;
+> +			}
+> +			break;
+> +		}
+> +	}
+> +
+> +	spin_unlock_irqrestore(&list_spinlock, flags);
+> +
+> +	if (!dev)
+> +		return NULL;
+> +
+> +	dev->bdev = bdev;
+> +	return dev;
+> +}
+> +
+> +/* Free up the Opal dev and its keys during two scenarios:
+> + *
+> + * 1) When a command is complete that no longer requires
+> + *    the opal dev to be around.
+> + * 2) When a command, including Opal Save fails we clean
+> + *    and free the opal dev.
+> + *
+> + *    If we find the opal dev structure in the list of
+> + *    saved passwords we will *not* remove it.
+> + */
+> +static void remove_and_clean_opal_dev(struct opal_dev *dev)
+> +{
+> +	struct opal_dev *iter;
+> +	bool found = false;
+> +
+> +	spin_lock(&list_spinlock);
+> +	list_for_each_entry(iter, &opal_list, node) {
+> +		if (iter == dev) {
+> +			found = true;
+> +			break;
+> +		}
+> +	}
+> +
+> +	spin_unlock(&list_spinlock);
+> +	if (!found) {
+> +		clean_opal_key(dev);
+> +		clean_function_data(dev);
+> +		kfree(dev);
+> +	}
+> +}
+> +
+> +static struct opal_dev *get_or_create_opal_dev(struct block_device *bdev,
+> +					       u8 lr, bool use_new)
+> +{
+> +	struct opal_dev *dev;
+> +
+> +	if (use_new)
+> +		return alloc_opal_dev(bdev, lr);
+> +
+> +	dev = get_registered_opal_dev(bdev, lr);
+> +	if (!dev) {
+> +		dev = alloc_opal_dev(bdev, lr);
+> +		if (!dev)
+> +			return NULL;
+No need for this check when you already return dev
+
+
+> +	}
+> +	return dev;
+> +}
+Instead, how about:
+static struct opal_dev *get_or_create_opal_dev(struct block_device *bdev,
+					       u8 lr, bool use_new)
+{
+	struct opal_dev *dev = NULL;
+
+	if (!use_new)
+		dev = get_registered_opal_dev(bdev, lr);
+
+	if (!dev)
+		dev = alloc_opal_dev(bdev, lr);
+
+	return dev;
+}
+
+
+> +
+> +static struct opal_completion *setup_opal_dev(struct block_device *bdev,
+> +					      struct opal_dev *dev,
+> +					      const opal_step *funcs,
+> +					      struct opal_key *key)
+> +{
+> +	int ret;
+> +
+> +	dev->bdev = bdev;
+> +	dev->state = 0;
+> +	dev->funcs = funcs;
+> +	dev->TSN = 0;
+> +	dev->HSN = 0;
+> +	dev->final_cb = NULL;
+> +	dev->final_cb_data = NULL;
+> +	dev->lr = key->lr;
+> +	dev->error_cb = end_opal_session_error;
+> +	dev->error_cb_data = dev;
+> +
+> +	if (key) {
+> +		memcpy(dev->key_name, key->key, key->key_len);
+> +		dev->key_name_len = key->key_len;
+> +		dev->key_type = key->key_type;
+> +
+> +		ret = get_opal_key(dev);
+> +		if (ret) {
+> +			kfree(dev->completion);
+> +			pr_err("%s: Couldn't get key: %d\n",
+> +			       dev->disk_name, ret);
+> +			return ERR_PTR(ret);
+> +		}
+> +	}
+> +	dev->func_data = NULL;
+> +	dev->completion->completion_status = 0;
+> +
+> +	return dev->completion;
+> +}
+> +
+> +static int internal_setup_lr(struct block_device *bdev,
+> +			     struct opal_user_lr_setup *setup)
+> +{
+> +	struct opal_dev *dev;
+> +	struct opal_completion *completion;
+> +	void *data[3] = { NULL };
+> +	const opal_step lr_funcs[] = {
+> +		opal_discovery0,
+> +		start_auth_opal_session,
+> +		setup_locking_range,
+> +		get_active_key,
+> +		gen_key,
+> +		end_opal_session,
+> +		NULL,
+> +	};
+> +	int ret;
+> +
+> +	dev = get_or_create_opal_dev(bdev, setup->key.lr, true);
+> +	if (!dev)
+> +		return -ENOMEM;
+> +
+> +	completion = setup_opal_dev(bdev, dev, lr_funcs, &setup->key);
+> +	if (IS_ERR(completion)) {
+> +		ret = PTR_ERR(completion);
+> +		goto error_return;
+> +	}
+> +
+> +	dev->func_data = data;
+> +	dev->num_func_data = 3;
+> +	dev->func_data[1] = &setup->who;
+> +	dev->func_data[2] = setup;
+> +
+> +	next(0, dev);
+> +	ret = wait_for_cmd_completion(completion);
+> +
+> + error_return:
+> +	remove_and_clean_opal_dev(dev);
+> +	return ret;
+> +}
+> +
+> +int opal_revert(struct block_device *bdev, struct opal_key *key)
+> +{
+> +	const opal_step revert_funcs[] = {
+> +		opal_discovery0,
+> +		start_SIDASP_opal_session,
+> +		revert_tper, /* controller will terminate session */
+> +		NULL,
+> +	};
+> +
+> +	return opal_register(bdev, key, revert_funcs);
+> +}
+> +
+> +int activate_user(struct block_device *bdev, struct opal_activate_user *act)
+> +{
+> +	const opal_step act_funcs[] = {
+> +		opal_discovery0,
+> +		start_admin1LSP_opal_session,
+> +		internal_activate_user,
+> +		end_opal_session,
+> +		NULL
+> +	};
+> +	struct opal_dev *dev;
+> +	struct opal_completion *completion;
+> +	void *data[3] = { NULL };
+> +	int ret;
+> +
+> +	dev = get_or_create_opal_dev(bdev, act->key.lr, true);
+> +	if (!dev)
+> +		return -ENOMEM;
+> +
+> +	completion = setup_opal_dev(bdev, dev, act_funcs, &act->key);
+> +	if (IS_ERR(completion)) {
+> +		ret = PTR_ERR(completion);
+> +		goto error_return;
+> +	}
+> +
+> +	dev->num_func_data = 3;
+> +	dev->func_data = data;
+> +	dev->func_data[1] = act;
+> +	dev->func_data[2] = act;
+> +
+> +	next(0, dev);
+> +	ret = wait_for_cmd_completion(completion);
+> +
+> + error_return:
+> +	remove_and_clean_opal_dev(dev);
+> +	return ret;
+> +}
+> +
+> +int opal_set_pw(struct block_device *bdev, struct opal_new_pw *pw)
+> +
+> +{
+> +	const opal_step pw_funcs[] = {
+> +		opal_discovery0,
+> +		start_auth_opal_session,
+> +		set_new_pw,
+> +		end_opal_session,
+> +		NULL
+> +	};
+> +	struct opal_dev *dev;
+> +	struct opal_completion *completion;
+> +	void *data[3] = { NULL };
+> +	int ret;
+> +
+> +	dev = get_or_create_opal_dev(bdev, pw->current_pin.lr, true);
+> +	if (!dev)
+> +		return -ENOMEM;
+> +
+> +	completion = setup_opal_dev(bdev, dev, pw_funcs, &pw->current_pin);
+> +	if (IS_ERR(completion)) {
+> +		ret = PTR_ERR(completion);
+> +		goto error_return;
+> +	}
+> +
+> +	dev->num_func_data = 3;
+> +	dev->func_data = data;
+> +	dev->func_data[1] = (void *) &pw->who;
+> +	dev->func_data[2] = (void *) pw;
+> +
+> +	next(0, dev);
+> +	ret = wait_for_cmd_completion(completion);
+> +
+> + error_return:
+> +	remove_and_clean_opal_dev(dev);
+> +	return ret;
+> +}
+> +
+> +int opal_act_lsp_int(struct block_device *bdev, struct opal_key *key,
+> +		     const opal_step *funcs)
+> +{
+> +	struct opal_dev *dev;
+> +	struct opal_completion *completion;
+> +	int ret;
+> +
+> +	dev = get_or_create_opal_dev(bdev, key->lr, true);
+> +	if (!dev)
+> +		return -ENOMEM;
+> +	completion = setup_opal_dev(bdev, dev, funcs, key);
+> +	if (IS_ERR(completion)) {
+> +		ret = PTR_ERR(completion);
+> +		goto error_return;
+> +	}
+> +
+> +	next(0, dev);
+> +	ret = wait_for_cmd_completion(completion);
+> +
+> + error_return:
+> +	remove_and_clean_opal_dev(dev);
+> +	return ret;
+> +}
+> +
+> +
+> +static int opal_save_internal(struct block_device *bdev,
+> +			      struct opal_lock_unlock *lk)
+> +{
+> +	void *func_data[3] = { NULL };
+> +	struct opal_dev *dev;
+> +	struct opal_completion *completion;
+> +	const opal_step _auth_funcs[] = {
+> +		opal_discovery0,
+> +		start_auth_opal_session,
+> +		query_locking_range,
+> +		end_opal_session,
+> +		opal_register_cont,
+> +		NULL
+> +	};
+> +	int ret;
+> +
+> +	dev = get_or_create_opal_dev(bdev, lk->key.lr, false);
+> +	if (!dev)
+> +		return -ENOMEM;
+> +	completion = setup_opal_dev(bdev, dev, _auth_funcs, &lk->key);
+> +	if (IS_ERR(completion)) {
+> +		ret = PTR_ERR(completion);
+> +		goto error_return;
+> +	}
+> +
+> +	dev->num_func_data = 3;
+> +	dev->func_data = func_data;
+> +	dev->func_data[1] = &lk->authority;
+> +	dev->lkul = *lk;
+> +
+> +	next(0, dev);
+> +	ret = wait_for_cmd_completion(completion);
+> +
+> + error_return:
+> +	remove_and_clean_opal_dev(dev);
+> +	return ret;
+> +}
+> +
+> +static int add_user_lr_internal(struct block_device *bdev,
+> +				struct opal_lock_unlock *lk)
+> +{
+> +	void *func_data[3] = { NULL };
+> +	struct opal_dev *dev;
+> +	struct opal_completion *completion;
+> +	const opal_step funcs[] = {
+> +		opal_discovery0,
+> +		start_admin1LSP_opal_session,
+> +		add_user_to_lr,
+> +		end_opal_session,
+> +		NULL
+> +	};
+> +	int ret;
+> +
+> +	dev = get_or_create_opal_dev(bdev, lk->key.lr, true);
+> +	if (!dev)
+> +		return -ENOMEM;
+> +	completion = setup_opal_dev(bdev, dev, funcs, &lk->key);
+> +	if (IS_ERR(completion)) {
+> +		ret = PTR_ERR(completion);
+> +		goto error_return;
+> +	}
+> +
+> +	dev->num_func_data = 3;
+> +	dev->func_data = func_data;
+> +	dev->func_data[2] = lk;
+> +
+> +	next(0, dev);
+> +	ret = wait_for_cmd_completion(completion);
+> +
+> + error_return:
+> +	remove_and_clean_opal_dev(dev);
+> +	return ret;
+> +}
+> +
+> +static int lock_unlock_internal(struct block_device *bdev,
+> +				struct opal_lock_unlock *lk)
+> +{
+> +	void *func_data[3] = { NULL };
+> +	struct opal_dev *dev;
+> +	struct opal_completion *completion;
+> +
+> +	const opal_step ulk_funcs_SUM[] = {
+> +		opal_discovery0,
+> +		start_auth_opal_session,
+> +		lock_unlock_locking_range_SUM,
+> +		end_opal_session,
+> +		NULL
+> +	};
+> +	const opal_step _unlock_funcs[] = {
+> +		opal_discovery0,
+> +		start_auth_opal_session,
+> +		lock_unlock_locking_range,
+> +		end_opal_session,
+> +		NULL
+> +	};
+> +	int ret;
+> +
+> +	dev = get_or_create_opal_dev(bdev, lk->key.lr, true);
+> +	if (!dev)
+> +		return -ENOMEM;
+> +
+> +	if (lk->authority.SUM)
+> +		completion = setup_opal_dev(bdev, dev, ulk_funcs_SUM, &lk->key);
+> +	else
+> +		completion = setup_opal_dev(bdev, dev, _unlock_funcs, &lk->key);
+> +
+> +	if (IS_ERR(completion)) {
+> +		ret = PTR_ERR(completion);
+> +		goto error_return;
+> +	}
+> +
+> +	dev->num_func_data = 3;
+> +	dev->func_data = func_data;
+> +	dev->func_data[1] = &lk->authority;
+> +	dev->func_data[2] = lk;
+> +
+> +	next(0, dev);
+> +	ret = wait_for_cmd_completion(completion);
+> +
+> + error_return:
+> +	remove_and_clean_opal_dev(dev);
+> +	return ret;
+> +}
+> +
+> +int opal_erase_locking_range(struct block_device *bdev, struct sed_key *key)
+> +{
+> +	struct opal_dev *dev;
+> +	struct opal_completion *completion;
+> +	struct opal_key k;
+> +	int ret;
+> +	const opal_step erase_funcs[] = {
+> +		opal_discovery0,
+> +		start_admin1LSP_opal_session,
+> +		erase_locking_range,
+> +		end_opal_session,
+> +		NULL,
+> +	};
+> +
+> +	if (!bdev || !bdev->bd_disk) {
+> +		pr_err("Can't save password for NULL block device.\n");
+> +		return -EINVAL;
+> +	}
+> +
+> +	if (copy_from_user(&k, key->opal, sizeof(*key->opal)))
+> +		return -EFAULT;
+> +
+> +	dev = get_or_create_opal_dev(bdev, k.lr, true);
+> +	if (!dev)
+> +		return -ENOMEM;
+> +
+> +	completion = setup_opal_dev(bdev, dev, erase_funcs, &k);
+> +	if (IS_ERR(completion)) {
+> +		ret = PTR_ERR(completion);
+> +		goto error_return;
+> +	}
+> +
+> +	next(0, dev);
+> +	ret = wait_for_cmd_completion(completion);
+> +
+> + error_return:
+> +	remove_and_clean_opal_dev(dev);
+> +	return ret;
+> +}
+> +EXPORT_SYMBOL(opal_erase_locking_range);
+> +
+> +int opal_enable_disable_shadow_mbr(struct block_device *bdev,
+> +				   struct sed_key *key)
+> +{
+> +	void *func_data[6] = { NULL };
+> +	struct opal_mbr_data mbr;
+> +	struct opal_dev *dev;
+> +	struct opal_completion *completion;
+> +	const opal_step mbr_funcs[] = {
+> +		opal_discovery0,
+> +		start_admin1LSP_opal_session,
+> +		set_mbr_done,
+> +		end_opal_session,
+> +		start_admin1LSP_opal_session,
+> +		set_mbr_enable_disable,
+> +		end_opal_session,
+> +		NULL,
+> +	};
+> +	int ret;
+> +
+> +	if (!bdev || !bdev->bd_disk) {
+> +		pr_err("Can't save password for NULL block device.\n");
+> +		return -EINVAL;
+> +	}
+> +
+> +	if (copy_from_user(&mbr, key->opal_mbr, sizeof(*key->opal_mbr)))
+> +		return -EFAULT;
+> +
+> +	if (mbr.enable_disable != OPAL_MBR_ENABLE &&
+> +	    mbr.enable_disable != OPAL_MBR_DISABLE)
+> +		return -EINVAL;
+> +
+> +	dev = get_or_create_opal_dev(bdev, mbr.key.lr, true);
+> +	if (!dev)
+> +		return -ENOMEM;
+> +
+> +	completion = setup_opal_dev(bdev, dev, mbr_funcs, &mbr.key);
+> +	if (IS_ERR(completion)) {
+> +		ret = PTR_ERR(completion);
+> +		goto error_return;
+> +	}
+> +
+> +	dev->num_func_data = 6;
+> +	dev->func_data = func_data;
+> +	dev->func_data[2] = &mbr.enable_disable;
+> +	dev->func_data[5] = &mbr.enable_disable;
+> +
+> +	next(0, dev);
+> +	ret = wait_for_cmd_completion(completion);
+> +
+> + error_return:
+> +	remove_and_clean_opal_dev(dev);
+> +	return ret;
+> +
+> +}
+> +EXPORT_SYMBOL(opal_enable_disable_shadow_mbr);
+> +
+> +int opal_save(struct block_device *bdev, struct sed_key *key)
+> +{
+> +	struct opal_lock_unlock lkul;
+> +
+> +	if (!bdev || !bdev->bd_disk) {
+> +		pr_err("Can't save password for NULL block device.\n");
+> +		return -EINVAL;
+> +	}
+> +
+> +	if (copy_from_user(&lkul, key->opal_lk_unlk, sizeof(*key->opal)))
+> +		return -EFAULT;
+> +
+> +	return opal_save_internal(bdev, &lkul);
+> +}
+> +EXPORT_SYMBOL(opal_save);
+> +
+> +int opal_add_user_to_lr(struct block_device *bdev, struct sed_key *key)
+> +{
+> +	struct opal_lock_unlock lkul;
+> +
+> +	if (copy_from_user(&lkul, key->opal_lk_unlk, sizeof(lkul)))
+> +		return -EFAULT;
+> +
+> +	if (!bdev || !bdev->bd_disk) {
+> +		pr_err("Can't assign user to LR without backing disk\n");
+> +		return -EFAULT;
+> +	}
+> +	if (lkul.l_state != OPAL_RO && lkul.l_state != OPAL_RW) {
+> +		pr_err("Locking state was not RO or RW\n");
+> +		return -EINVAL;
+> +	}
+> +	if (lkul.authority.who < OPAL_USER1 &&
+> +	    lkul.authority.who > OPAL_USER9) {
+> +		pr_err("Authority was not within the range of users: %d\n",
+> +		       lkul.authority.who);
+> +		return -EINVAL;
+> +	}
+> +	if (lkul.authority.SUM) {
+> +		pr_err("%s not supported in SUM. Use setup locking range\n",
+> +		       __func__);
+> +		return -EINVAL;
+> +	}
+> +
+> +	return add_user_lr_internal(bdev, &lkul);
+> +}
+> +EXPORT_SYMBOL(opal_add_user_to_lr);
+> +
+> +int opal_reverttper(struct block_device *bdev, struct sed_key *key)
+> +{
+> +	struct opal_key k;
+> +
+> +	if (copy_from_user(&k, key->opal, sizeof(*key->opal)))
+> +		return -EFAULT;
+> +
+> +	return opal_revert(bdev, &k);
+> +}
+> +EXPORT_SYMBOL(opal_reverttper);
+> +
+> +int opal_lock_unlock(struct block_device *bdev, struct sed_key *key)
+> +{
+> +	struct opal_lock_unlock k;
+> +
+> +	if (copy_from_user(&k, key->opal_lk_unlk, sizeof(*key->opal_lk_unlk)))
+> +		return -EFAULT;
+> +
+> +	if (k.authority.who < OPAL_ADMIN1 || k.authority.who >= OPAL_USER9)
+Should this be > OPAL_USER9 ?
+
+
+> +		return -EINVAL;
+> +
+> +	return lock_unlock_internal(bdev, &k);
+> +}
+> +EXPORT_SYMBOL(opal_lock_unlock);
+> +
+> +int opal_take_ownership(struct block_device *bdev, struct sed_key *key)
+> +{
+> +	struct opal_key k;
+> +	const opal_step owner_funcs[] = {
+> +		opal_discovery0,
+> +		start_anybodyASP_opal_session,
+> +		get_msid_cpin_pin,
+> +		end_opal_session,
+> +		start_SIDASP_opal_session,
+> +		set_sid_cpin_pin,
+> +		end_opal_session,
+> +		NULL
+> +	};
+> +
+> +	if (!bdev || !bdev->bd_disk) {
+> +		pr_err("Can't save password for NULL block device.\n");
+> +		return -EINVAL;
+> +	}
+> +
+> +	if (copy_from_user(&k, key->opal, sizeof(*key->opal)))
+> +		return -EFAULT;
+> +
+> +	return opal_register(bdev, &k, owner_funcs);
+> +}
+> +EXPORT_SYMBOL(opal_take_ownership);
+> +
+> +int opal_activate_lsp(struct block_device *bdev, struct sed_key *key)
+> +{
+> +	struct opal_key k;
+> +	const opal_step active_funcs[] = {
+> +		opal_discovery0,
+> +		start_SIDASP_opal_session, /* Open session as SID auth */
+> +		get_lsp_lifecycle,
+> +		activate_lsp,
+> +		end_opal_session,
+> +		NULL
+> +	};
+> +
+> +	if (!bdev || !bdev->bd_disk) {
+> +		pr_err("Can't save password for NULL block device.\n");
+> +		return -EINVAL;
+> +	}
+> +
+> +	if (copy_from_user(&k, key->opal, sizeof(*key->opal)))
+> +		return -EFAULT;
+> +
+> +	return opal_act_lsp_int(bdev, &k, active_funcs);
+> +}
+> +EXPORT_SYMBOL(opal_activate_lsp);
+> +
+> +int opal_setup_locking_range(struct block_device *bdev, struct sed_key *pw)
+> +{
+> +	struct opal_user_lr_setup k;
+> +
+> +	if (!bdev || !bdev->bd_disk) {
+> +		pr_err("Can't save password for NULL block device.\n");
+> +		return -EINVAL;
+> +	}
+> +
+> +	if (copy_from_user(&k, pw->opal_lrs, sizeof(*pw->opal_lrs)))
+> +		return -EFAULT;
+> +
+> +	return internal_setup_lr(bdev, &k);
+> +}
+> +
+> +int opal_set_new_pw(struct block_device *bdev, struct sed_key *pw)
+> +{
+> +	struct opal_new_pw k;
+> +
+> +	if (pw->sed_type != OPAL_PW)
+> +		return -EINVAL;
+> +
+> +	if (copy_from_user(&k, pw->opal_pw, sizeof(*pw->opal_pw)))
+> +		return -EFAULT;
+> +
+> +	if (k.who.who < OPAL_ADMIN1 || k.who.who > OPAL_USER9)
+> +		return -EINVAL;
+> +
+> +	return opal_set_pw(bdev, &k);
+> +}
+> +EXPORT_SYMBOL(opal_set_new_pw);
+> +
+> +int opal_activate_user(struct block_device *bdev, struct sed_key *pw)
+> +{
+> +	struct opal_activate_user k;
+> +
+> +	if (pw->sed_type != OPAL_ACT_USR) {
+> +		pr_err("Sed type was not act user\n");
+> +		return -EINVAL;
+> +	}
+> +
+> +	if (copy_from_user(&k, pw->opal_act, sizeof(*pw->opal_act))) {
+> +		pr_err("copy from user error\n");
+> +		return -EFAULT;
+> +	}
+> +
+> +	/* We can't activate Admin1 it's active as manufactured */
+> +	if (k.who.who < OPAL_USER1 && k.who.who > OPAL_USER9) {
+> +		pr_err("Who was not a valid user: %d \n", k.who.who);
+> +		return -EINVAL;
+> +	}
+> +
+> +	return activate_user(bdev, &k);
+> +
+> +}
+> +EXPORT_SYMBOL(opal_activate_user);
+> +
+> +int opal_unlock_from_suspend(struct opal_suspend_unlk *data)
+> +{
+> +	const char *diskname = data->name;
+> +	struct opal_dev *iter, *dev = NULL;
+> +	struct opal_completion *completion;
+> +	void *func_data[3] = { NULL };
+> +	const opal_step _unlock_funcs_SUM[] = {
+> +		opal_discovery0,
+> +		start_auth_opal_session,
+> +		lock_unlock_locking_range,
+Did you mean to use lock_unlock_locking_range_SUM ?
+Can we pull these two arrays out since they are required for both this
+function and lock_unlock_internal ?
+
+
+> +		end_opal_session,
+> +		NULL
+> +	};
+> +	const opal_step _unlock_funcs[] = {
+> +		opal_discovery0,
+> +		start_auth_opal_session,
+> +		lock_unlock_locking_range,
+> +		end_opal_session,
+> +		NULL
+> +	};
+> +
+> +
+> +	spin_lock(&list_spinlock);
+> +	list_for_each_entry(iter, &opal_list, node) {
+> +		if (strncmp(iter->disk_name, diskname, DISK_NAME_LEN)) {
+> +			pr_err("iterdisk was %s and diskname is %s\n",
+> +			       iter->disk_name, diskname);
+> +			continue;
+> +		}
+> +		if (atomic_add_unless(&iter->in_use, 1, 1)) {
+> +			dev = iter;
+> +			dev->func_data = func_data;
+> +			dev->resume_from_suspend = true;
+> +			dev->resume_data = data;
+> +			dev->final_cb = unlock_suspend_final;
+> +			dev->final_cb_data = dev;
+> +			dev->error_cb = end_opal_session_error;
+> +			dev->error_cb_data = dev;
+> +			dev->state = 0;
+> +			if (dev->lkul.authority.SUM)
+> +				dev->funcs = _unlock_funcs_SUM;
+> +			else
+> +				dev->funcs = _unlock_funcs;
+> +			dev->TSN = 0;
+> +			dev->HSN = 0;
+> +			dev->func_data[2] = &dev->lkul;
+> +			dev->func_data[1] = &dev->lkul.authority;
+> +			completion = dev->completion;
+> +			next(0, dev);
+> +			wait_for_cmd_completion(completion);
+> +		}
+> +	}
+> +	spin_unlock(&list_spinlock);
+> +
+> +	if (!dev)
+> +		return -ENODEV;
+> +	return 0;
+> +}
+> +EXPORT_SYMBOL(opal_unlock_from_suspend);
+> diff --git a/lib/sed-opal_internal.h b/lib/sed-opal_internal.h
+> new file mode 100644
+> index 0000000..c9d3883
+> --- /dev/null
+> +++ b/lib/sed-opal_internal.h
+> @@ -0,0 +1,586 @@
+> +/*
+> + * Copyright ? 2016 Intel Corporation
+> + *
+> + * Permission is hereby granted, free of charge, to any person obtaining a
+> + * copy of this software and associated documentation files (the "Software"),
+> + * to deal in the Software without restriction, including without limitation
+> + * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+> + * and/or sell copies of the Software, and to permit persons to whom the
+> + * Software is furnished to do so, subject to the following conditions:
+> + *
+> + * The above copyright notice and this permission notice (including the next
+> + * paragraph) shall be included in all copies or substantial portions of the
+> + * Software.
+> + *
+> + * 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.
+> + *
+> + * Author:
+> + *    Rafael Antognolli <rafael.antognolli at intel.com>
+> + *    Scott  Bauer      <scott.bauer at intel.com>
+> + */
+> +
+> +#ifndef _NVME_OPAL_INTERNAL_H
+> +#define _NVME_OPAL_INTERNAL_H
+> +
+> +#include <linux/key-type.h>
+> +#include <keys/user-type.h>
+> +
+> +#define DTAERROR_NO_METHOD_STATUS 0x89
+> +
+> +static const char *opal_errors[19] = {
+Remove the 19 so it's just opal_errors[] (doesnt silently truncate any
+new additions)
+
+
+> +	"Success",
+> +	"Not Authorized",
+> +	"Unknown Error",
+> +	"SP Busy",
+> +	"SP Failed",
+> +	"SP Disabled",
+> +	"SP Frozen",
+> +	"No Sessions Available",
+> +	"Uniqueness Conflict",
+> +	"Insufficient Space",
+> +	"Insufficient Rows",
+> +	"Invalid Function",
+> +	"Invalid Parameter",
+> +	"Invalid Reference",
+> +	"Unknown Error",
+> +	"TPER Malfunction",
+> +	"Transaction Failure",
+> +	"Response Overflow",
+> +	"Authority Locked Out",
+> +};
+> +
+> +static const char *opal_error_to_human(int error)
+> +{
+> +	if (error == 0x3f)
+> +		return "Failed";
+> +
+> +	if (error >= sizeof(opal_errors) || error < 0)
+You want sizeof(opal_errors)/sizeof(*opal_errors) here, but you can just
+use the ARRAY_SIZE macro instead
+
+
+> +		return "Unknown Error";
+> +
+> +	return opal_errors[error];
+> +}
+> +
+> +/* User IDs used in the TCG storage SSCs */
+> +static const u8 OPALUID[][8] = {
+> +	/* users */
+> +
+> +	/* session management  */
+> +	{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff},
+> +	/* special "thisSP" syntax */
+> +	{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 },
+> +	/* Administrative SP */
+> +	{ 0x00, 0x00, 0x02, 0x05, 0x00, 0x00, 0x00, 0x01 },
+> +	/* Locking SP */
+> +	{ 0x00, 0x00, 0x02, 0x05, 0x00, 0x00, 0x00, 0x02 },
+> +	/* ENTERPRISE Locking SP  */
+> +	{ 0x00, 0x00, 0x02, 0x05, 0x00, 0x01, 0x00, 0x01 },
+> +	/* anybody */
+> +	{ 0x00, 0x00, 0x00, 0x09, 0x00, 0x00, 0x00, 0x01 },
+> +	/* SID */
+> +	{ 0x00, 0x00, 0x00, 0x09, 0x00, 0x00, 0x00, 0x06 },
+> +	/* ADMIN1 */
+> +	{ 0x00, 0x00, 0x00, 0x09, 0x00, 0x01, 0x00, 0x01 },
+> +	/* USER1 */
+> +	{ 0x00, 0x00, 0x00, 0x09, 0x00, 0x03, 0x00, 0x01 },
+> +	/* USER2 */
+> +	{ 0x00, 0x00, 0x00, 0x09, 0x00, 0x03, 0x00, 0x02 },
+> +	/* PSID user */
+> +	{ 0x00, 0x00, 0x00, 0x09, 0x00, 0x01, 0xff, 0x01 },
+> +	/* BandMaster 0 */
+> +	{ 0x00, 0x00, 0x00, 0x09, 0x00, 0x00, 0x80, 0x01 },
+> +	 /* EraseMaster */
+> +	{ 0x00, 0x00, 0x00, 0x09, 0x00, 0x00, 0x84, 0x01 },
+> +
+> +	/* tables */
+> +
+> +	/* Locking_GlobalRange */
+> +	{ 0x00, 0x00, 0x08, 0x02, 0x00, 0x00, 0x00, 0x01 },
+> +	/* ACE_Locking_Range_Set_RdLocked UID */
+> +	{ 0x00, 0x00, 0x00, 0x08, 0x00, 0x03, 0xE0, 0x01 },
+> +	/* ACE_Locking_Range_Set_WrLocked UID */
+> +	{ 0x00, 0x00, 0x00, 0x08, 0x00, 0x03, 0xE8, 0x01 },
+> +	/* MBR Control */
+> +	{ 0x00, 0x00, 0x08, 0x03, 0x00, 0x00, 0x00, 0x01 },
+> +	/* Shadow MBR */
+> +	{ 0x00, 0x00, 0x08, 0x04, 0x00, 0x00, 0x00, 0x00 },
+> +	/* AUTHORITY_TABLE */
+> +	{ 0x00, 0x00, 0x00, 0x09, 0x00, 0x00, 0x00, 0x00},
+> +	/* C_PIN_TABLE */
+> +	{ 0x00, 0x00, 0x00, 0x0B, 0x00, 0x00, 0x00, 0x00},
+> +	/* OPAL Locking Info */
+> +	{ 0x00, 0x00, 0x08, 0x01, 0x00, 0x00, 0x00, 0x01 },
+> +	/* Enterprise Locking Info */
+> +	{ 0x00, 0x00, 0x08, 0x01, 0x00, 0x00, 0x00, 0x00 },
+> +
+> +	/* C_PIN_TABLE object ID's */
+> +
+> +	/* C_PIN_MSID */
+> +	{ 0x00, 0x00, 0x00, 0x0B, 0x00, 0x00, 0x84, 0x02},
+> +	/* C_PIN_SID */
+> +	{ 0x00, 0x00, 0x00, 0x0B, 0x00, 0x00, 0x00, 0x01},
+> +	 /* C_PIN_ADMIN1 */
+> +	{ 0x00, 0x00, 0x00, 0x0B, 0x00, 0x01, 0x00, 0x01},
+> +
+> +	/* half UID's (only first 4 bytes used) */
+> +
+> +	/* Half-UID ? Authority_object_ref */
+> +	{ 0x00, 0x00, 0x0C, 0x05, 0xff, 0xff, 0xff, 0xff },
+> +	/* Half-UID ? Boolean ACE */
+> +	{ 0x00, 0x00, 0x04, 0x0E, 0xff, 0xff, 0xff, 0xff },
+> +
+> +	/* special value for omitted optional parameter */
+> +
+> +	/* HEXFF for omitted */
+> +	{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff},
+> +};
+> +static const size_t OPAL_UID_LENGTH = 8;
+> +static const size_t OPAL_MSID_KEYLEN = 15;
+> +static const size_t OPAL_UID_LENGTH_HALF = 4;
+> +
+> +
+> +/* Enum to index OPALUID array */
+> +enum OPAL_UID {
+> +	/* users */
+> +	OPAL_SMUID_UID,
+> +	OPAL_THISSP_UID,
+> +	OPAL_ADMINSP_UID,
+> +	OPAL_LOCKINGSP_UID,
+> +	OPAL_ENTERPRISE_LOCKINGSP_UID,
+> +	OPAL_ANYBODY_UID,
+> +	OPAL_SID_UID,
+> +	OPAL_ADMIN1_UID,
+> +	OPAL_USER1_UID,
+> +	OPAL_USER2_UID,
+> +	OPAL_PSID_UID,
+> +	OPAL_ENTERPRISE_BANDMASTER0_UID,
+> +	OPAL_ENTERPRISE_ERASEMASTER_UID,
+> +	/* tables */
+> +	OPAL_LOCKINGRANGE_GLOBAL,
+> +	OPAL_LOCKINGRANGE_ACE_RDLOCKED,
+> +	OPAL_LOCKINGRANGE_ACE_WRLOCKED,
+> +	OPAL_MBRCONTROL,
+> +	OPAL_MBR,
+> +	OPAL_AUTHORITY_TABLE,
+> +	OPAL_C_PIN_TABLE,
+> +	OPAL_LOCKING_INFO_TABLE,
+> +	OPAL_ENTERPRISE_LOCKING_INFO_TABLE,
+> +	/* C_PIN_TABLE object ID's */
+> +	OPAL_C_PIN_MSID,
+> +	OPAL_C_PIN_SID,
+> +	OPAL_C_PIN_ADMIN1,
+> +	/* half UID's (only first 4 bytes used) */
+> +	OPAL_HALF_UID_AUTHORITY_OBJ_REF,
+> +	OPAL_HALF_UID_BOOLEAN_ACE,
+> +	/* omitted optional parameter */
+> +	OPAL_UID_HEXFF,
+> +};
+> +
+> +/*
+> + * TCG Storage SSC Methods.
+> + */
+> +static const u8 OPALMETHOD[][8] = {
+> +	/* Properties */
+> +	{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x01 },
+> +	/* STARTSESSION */
+> +	{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x02 },
+> +	/* Revert */
+> +	{ 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x02, 0x02 },
+> +	/* Activate */
+> +	{ 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x02, 0x03 },
+> +	/* Enterprise Get */
+> +	{ 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x06 },
+> +	/* Enterprise Set */
+> +	{ 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x07 },
+> +	/* NEXT */
+> +	{ 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x08 },
+> +	/* Enterprise Authenticate */
+> +	{ 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x0c },
+> +	/* GetACL */
+> +	{ 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x0d },
+> +	/* GenKey */
+> +	{ 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x10 },
+> +	/* revertSP */
+> +	{ 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x11 },
+> +	/* Get */
+> +	{ 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x16 },
+> +	/* Set */
+> +	{ 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x17 },
+> +	/* Authenticate */
+> +	{ 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x1c },
+> +	/* Random */
+> +	{ 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x06, 0x01 },
+> +	/* Erase */
+> +	{ 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x08, 0x03 },
+> +};
+> +static const size_t OPAL_METHOD_LENGTH = 8;
+> +
+> +/* Enum for indexing the OPALMETHOD array */
+> +enum OPAL_METHOD {
+> +	OPAL_PROPERTIES,
+> +	OPAL_STARTSESSION,
+> +	OPAL_REVERT,
+> +	OPAL_ACTIVATE,
+> +	OPAL_EGET,
+> +	OPAL_ESET,
+> +	OPAL_NEXT,
+> +	OPAL_EAUTHENTICATE,
+> +	OPAL_GETACL,
+> +	OPAL_GENKEY,
+> +	OPAL_REVERTSP,
+> +	OPAL_GET,
+> +	OPAL_SET,
+> +	OPAL_AUTHENTICATE,
+> +	OPAL_RANDOM,
+> +	OPAL_ERASE,
+> +};
+> +
+> +enum OPAL_RESPONSE_TOKEN {
+> +	OPAL_DTA_TOKENID_BYTESTRING = 0xe0,
+> +	OPAL_DTA_TOKENID_SINT = 0xe1,
+> +	OPAL_DTA_TOKENID_UINT = 0xe2,
+> +	OPAL_DTA_TOKENID_TOKEN = 0xe3, /* actual token is returned */
+> +	OPAL_DTA_TOKENID_INVALID = 0X0
+> +};
+> +
+> +enum OPAL_TOKEN {
+> +	/* Boolean */
+> +	OPAL_TRUE = 0x01,
+> +	OPAL_FALSE = 0x00,
+> +	OPAL_BOOLEAN_EXPR = 0x03,
+> +	/* cellblocks */
+> +	OPAL_TABLE = 0x00,
+> +	OPAL_STARTROW = 0x01,
+> +	OPAL_ENDROW = 0x02,
+> +	OPAL_STARTCOLUMN = 0x03,
+> +	OPAL_ENDCOLUMN = 0x04,
+> +	OPAL_VALUES = 0x01,
+> +	/* authority table */
+> +	OPAL_PIN = 0x03,
+> +	/* locking tokens */
+> +	OPAL_RANGESTART = 0x03,
+> +	OPAL_RANGELENGTH = 0x04,
+> +	OPAL_READLOCKENABLED = 0x05,
+> +	OPAL_WRITELOCKENABLED = 0x06,
+> +	OPAL_READLOCKED = 0x07,
+> +	OPAL_WRITELOCKED = 0x08,
+> +	OPAL_ACTIVEKEY = 0x0A,
+> +	/* locking info table */
+> +	OPAL_MAXRANGES = 0x04,
+> +	 /* mbr control */
+> +	OPAL_MBRENABLE = 0x01,
+> +	OPAL_MBRDONE = 0x02,
+> +	/* properties */
+> +	OPAL_HOSTPROPERTIES = 0x00,
+> +	/* atoms */
+> +	OPAL_STARTLIST = 0xf0,
+> +	OPAL_ENDLIST = 0xf1,
+> +	OPAL_STARTNAME = 0xf2,
+> +	OPAL_ENDNAME = 0xf3,
+> +	OPAL_CALL = 0xf8,
+> +	OPAL_ENDOFDATA = 0xf9,
+> +	OPAL_ENDOFSESSION = 0xfa,
+> +	OPAL_STARTTRANSACTON = 0xfb,
+> +	OPAL_ENDTRANSACTON = 0xfC,
+> +	OPAL_EMPTYATOM = 0xff,
+> +	OPAL_WHERE = 0x00,
+> +};
+> +
+> +/* Useful tiny atoms.
+> + * Useful for table columns etc
+> + */
+> +enum OPAL_TINY_ATOM {
+> +	OPAL_TINY_UINT_00 = 0x00,
+> +	OPAL_TINY_UINT_01 = 0x01,
+> +	OPAL_TINY_UINT_02 = 0x02,
+> +	OPAL_TINY_UINT_03 = 0x03,
+> +	OPAL_TINY_UINT_04 = 0x04,
+> +	OPAL_TINY_UINT_05 = 0x05,
+> +	OPAL_TINY_UINT_06 = 0x06,
+> +	OPAL_TINY_UINT_07 = 0x07,
+> +	OPAL_TINY_UINT_08 = 0x08,
+> +	OPAL_TINY_UINT_09 = 0x09,
+> +	OPAL_TINY_UINT_10 = 0x0a,
+> +	OPAL_TINY_UINT_11 = 0x0b,
+> +	OPAL_TINY_UINT_12 = 0x0c,
+> +	OPAL_TINY_UINT_13 = 0x0d,
+> +	OPAL_TINY_UINT_14 = 0x0e,
+> +	OPAL_TINY_UINT_15 = 0x0f,
+> +};
+> +
+> +enum OPAL_ATOM_WIDTH {
+> +	OPAL_WIDTH_TINY,
+> +	OPAL_WIDTH_SHORT,
+> +	OPAL_WIDTH_MEDIUM,
+> +	OPAL_WIDTH_LONG,
+> +	OPAL_WIDTH_TOKEN
+> +};
+> +
+> +/* Locking state for a locking range */
+> +enum OPAL_LOCKINGSTATE {
+> +	OPAL_LOCKING_READWRITE = 0x01,
+> +	OPAL_LOCKING_READONLY = 0x02,
+> +	OPAL_LOCKING_LOCKED = 0x03,
+> +};
+> +
+> +/*
+> + * Structures to build and decode the Opal SSC messages
+> + * fields that are NOT really numeric are defined as u8[] to
+> + * help reduce the endianness issues
+> + */
+> +
+> +/* Comm Packet (header) for transmissions. */
+> +struct opal_compacket {
+> +	u32 reserved0;
+> +	u8 extendedComID[4];
+> +	u32 outstandingData;
+> +	u32 minTransfer;
+> +	u32 length;
+> +};
+> +
+> +/* Packet structure. */
+> +struct opal_packet {
+> +	u32 TSN;
+> +	u32 HSN;
+> +	u32 seq_number;
+> +	u16 reserved0;
+> +	u16 ack_type;
+> +	u32 acknowledgment;
+> +	u32 length;
+> +};
+> +
+> +/* Data sub packet header */
+> +struct opal_data_subpacket {
+> +	u8 reserved0[6];
+> +	u16 kind;
+> +	u32 length;
+> +};
+> +
+> +/* header of a response */
+> +struct opal_header {
+> +	struct opal_compacket cp;
+> +	struct opal_packet pkt;
+> +	struct opal_data_subpacket subpkt;
+> +};
+> +
+> +#define FC_TPER       0x0001
+> +#define FC_LOCKING    0x0002
+> +#define FC_GEOMETRY   0x0003
+> +#define FC_ENTERPRISE 0x0100
+> +#define FC_DATASTORE  0x0202
+> +#define FC_SINGLEUSER 0x0201
+> +#define FC_OPALV100   0x0200
+> +#define FC_OPALV200   0x0203
+> +
+> +/*
+> + * The Discovery 0 Header. As defined in
+> + * Opal SSC Documentation
+> + */
+> +struct d0_header {
+> +	u32 length; /* the length of the header 48 in 2.00.100 */
+> +	u32 revision; /**< revision of the header 1 in 2.00.100 */
+> +	u32 reserved01;
+> +	u32 reserved02;
+> +	/*
+> +	 * the remainder of the structure is vendor specific and will not be
+> +	 * addressed now
+> +	 */
+> +	u8 ignored[32];
+> +};
+> +
+> +/*
+> + * TPer Feature Descriptor. Contains flags indicating support for the
+> + * TPer features described in the OPAL specification. The names match the
+> + * OPAL terminology
+> + *
+> + * code == 0x001 in 2.00.100
+> + */
+> +struct d0_tper_features {
+> +	/*
+> +	 * supported_features bits:
+> +	 * bit 7: reserved
+> +	 * bit 6: com ID management
+> +	 * bit 5: reserved
+> +	 * bit 4: streaming support
+> +	 * bit 3: buffer management
+> +	 * bit 2: ACK/NACK
+> +	 * bit 1: async
+> +	 * bit 0: sync
+> +	 */
+> +	u8 supported_features;
+> +	/*
+> +	 * bytes 5 through 15 are reserved, but we represent the first 3 as
+> +	 * u8 to keep the other two 32bits integers aligned.
+> +	 */
+> +	u8 reserved01[3];
+> +	u32 reserved02;
+> +	u32 reserved03;
+> +};
+> +
+> +/*
+> + * Locking Feature Descriptor. Contains flags indicating support for the
+> + * locking features described in the OPAL specification. The names match the
+> + * OPAL terminology
+> + *
+> + * code == 0x0002 in 2.00.100
+> + */
+> +struct d0_locking_features {
+> +	/*
+> +	 * supported_features bits:
+> +	 * bits 6-7: reserved
+> +	 * bit 5: MBR done
+> +	 * bit 4: MBR enabled
+> +	 * bit 3: media encryption
+> +	 * bit 2: locked
+> +	 * bit 1: locking enabled
+> +	 * bit 0: locking supported
+> +	 */
+> +	u8 supported_features;
+> +	/*
+> +	 * bytes 5 through 15 are reserved, but we represent the first 3 as
+> +	 * u8 to keep the other two 32bits integers aligned.
+> +	 */
+> +	u8 reserved01[3];
+> +	u32 reserved02;
+> +	u32 reserved03;
+> +};
+> +
+> +/*
+> + * Geometry Feature Descriptor. Contains flags indicating support for the
+> + * geometry features described in the OPAL specification. The names match the
+> + * OPAL terminology
+> + *
+> + * code == 0x0003 in 2.00.100
+> + */
+> +struct d0_geometry_features {
+> +	/*
+> +	 * skip 32 bits from header, needed to align the struct to 64 bits.
+> +	 */
+> +	u8 header[4];
+> +	/*
+> +	 * reserved01:
+> +	 * bits 1-6: reserved
+> +	 * bit 0: align
+> +	 */
+> +	u8 reserved01;
+> +	u8 reserved02[7];
+> +	u32 logical_block_size;
+> +	u64 alignment_granularity;
+> +	u64 lowest_aligned_lba;
+> +};
+> +
+> +/*
+> + * Enterprise SSC Feature
+> + *
+> + * code == 0x0100
+> + */
+> +struct d0_enterprise_ssc {
+> +	u16 baseComID;
+> +	u16 numComIDs;
+> +	/* range_crossing:
+> +	 * bits 1-6: reserved
+> +	 * bit 0: range crossing
+> +	 */
+> +	u8 range_crossing;
+> +	u8 reserved01;
+> +	u16 reserved02;
+> +	u32 reserved03;
+> +	u32 reserved04;
+> +};
+> +
+> +/*
+> + * Opal V1 feature
+> + *
+> + * code == 0x0200
+> + */
+> +struct d0_opal_v100 {
+> +	u16 baseComID;
+> +	u16 numComIDs;
+> +};
+> +
+> +/*
+> + * Single User Mode feature
+> + *
+> + * code == 0x0201
+> + */
+> +struct d0_single_user_mode {
+> +	u32 num_locking_objects;
+> +	/* reserved01:
+> +	 * bit 0: any
+> +	 * bit 1: all
+> +	 * bit 2: policy
+> +	 * bits 3-7: reserved
+> +	 */
+> +	u8 reserved01;
+> +	u8 reserved02;
+> +	u16 reserved03;
+> +	u32 reserved04;
+> +};
+> +
+> +/*
+> + * Additonal Datastores feature
+> + *
+> + * code == 0x0202
+> + */
+> +struct d0_datastore_table {
+> +	u16 reserved01;
+> +	u16 max_tables;
+> +	u32 max_size_tables;
+> +	u32 table_size_alignment;
+> +};
+> +
+> +/*
+> + * OPAL 2.0 feature
+> + *
+> + * code == 0x0203
+> + */
+> +struct d0_opal_v200 {
+> +	u16 baseComID;
+> +	u16 numComIDs;
+> +	/* range_crossing:
+> +	 * bits 1-6: reserved
+> +	 * bit 0: range crossing
+> +	 */
+> +	u8 range_crossing;
+> +	/* num_locking_admin_auth:
+> +	 * not aligned to 16 bits, so use two u8.
+> +	 * stored in big endian:
+> +	 * 0: MSB
+> +	 * 1: LSB
+> +	 */
+> +	u8 num_locking_admin_auth[2];
+> +	/* num_locking_user_auth:
+> +	 * not aligned to 16 bits, so use two u8.
+> +	 * stored in big endian:
+> +	 * 0: MSB
+> +	 * 1: LSB
+> +	 */
+> +	u8 num_locking_user_auth[2];
+> +	u8 initialPIN;
+> +	u8 revertedPIN;
+> +	u8 reserved01;
+> +	u32 reserved02;
+> +};
+> +
+> +/* Union of features used to parse the discovery 0 response */
+> +struct d0_features {
+> +	u16 code;
+> +	/*
+> +	 * r_version bits:
+> +	 * bits 4-7: version
+> +	 * bits 0-3: reserved
+> +	 */
+> +	u8 r_version;
+> +	u8 length;
+> +	u8 features[];
+> +};
+> +
+> +struct key *request_user_key(const char *master_desc, const u8 **master_key,
+> +			     size_t *master_keylen);
+> +
+> +#endif /* _NVME_OPAL_INTERNAL_H */
+> diff --git a/lib/sed-opal_key.c b/lib/sed-opal_key.c
+> new file mode 100644
+> index 0000000..0b4de01
+> --- /dev/null
+> +++ b/lib/sed-opal_key.c
+> @@ -0,0 +1,46 @@
+> +/*
+> + * Copyright ? 2016 Intel Corporation
+> + *
+> + * Permission is hereby granted, free of charge, to any person obtaining a
+> + * copy of this software and associated documentation files (the "Software"),
+> + * to deal in the Software without restriction, including without limitation
+> + * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+> + * and/or sell copies of the Software, and to permit persons to whom the
+> + * Software is furnished to do so, subject to the following conditions:
+> + *
+> + * The above copyright notice and this permission notice (including the next
+> + * paragraph) shall be included in all copies or substantial portions of the
+> + * Software.
+> + *
+> + * 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.
+> + *
+> + * Author:
+> + *    Rafael Antognolli <rafael.antognolli at intel.com>
+> + */
+> +
+> +#include <linux/key.h>
+> +#include "sed-opal_internal.h"
+> +
+> +struct key *request_user_key(const char *master_desc, const u8 **master_key,
+> +			     size_t *master_keylen)
+> +{
+> +	const struct user_key_payload *upayload;
+> +	struct key *ukey;
+> +
+> +	ukey = request_key(&key_type_user, master_desc, NULL);
+> +	if (IS_ERR(ukey))
+> +		goto error;
+> +
+> +	down_read(&ukey->sem);
+> +	upayload = user_key_payload(ukey);
+> +	*master_key = upayload->data;
+> +	*master_keylen = upayload->datalen;
+> +error:
+> +	return ukey;
+> +}
+> diff --git a/lib/sed.c b/lib/sed.c
+> new file mode 100644
+> index 0000000..06cacd9
+> --- /dev/null
+> +++ b/lib/sed.c
+> @@ -0,0 +1,303 @@
+> +#include <linux/blkdev.h>
+> +#include <linux/sed.h>
+> +#include <linux/sed-opal.h>
+> +
+> +#ifndef CONFIG_SED_OPAL
+> +static int sed_opal_save(struct block_device *bdev, struct sed_key *sed)
+> +	{ return -EOPNOTSUPP; }
+> +static int sed_opal_lock_unlock(struct block_device *bdev, struct sed_key *key)
+> +	{ return -EOPNOTSUPP; }
+> +static int sed_opal_take_ownership(struct block_device *bdev, struct sed_key *key)
+> +	{ return -EOPNOTSUPP; }
+> +static int sed_opal_activate_lsp(struct block_device *bdev, struct sed_key *key)
+> +	{ return -EOPNOTSUPP; }
+> +static int sed_opal_set_pw(struct block_device *bdev, struct sed_key *key)
+> +	{ return -EOPNOTSUPP; }
+> +static int sed_opal_activate_user(struct block_device *bdev, struct sed_key *key)
+> +	{ return -EOPNOTSUPP; }
+> +static int sed_opal_reverttper(struct block_device *bdev, struct sed_key *key)
+> +	{ return -EOPNOTSUPP; }
+> +static int sed_opal_setup_locking_range(struct block_device *bdev, struct sed_key *key)
+> +	{ return -EOPNOTSUPP; }
+> +static int sed_opal_adduser_to_lr(struct block_device *bdev, struct sed_key *key)
+> +	{ return -EOPNOTSUPP; }
+> +static int sed_opal_do_mbr(struct block_device *bdev, struct sed_key *key)
+> +	{ return -EOPNOTSUPP; }
+> +static int sed_opal_erase_lr(struct block_device *bdev, struct sed_key *key)
+> +	{ return -EOPNOTSUPP; }
+> +
+> +#else
+> +
+> +static int sed_opal_save(struct block_device *bdev, struct sed_key *key)
+> +{
+> +
+> +	if (!bdev || !bdev->bd_disk || !bdev->bd_disk->fops ||
+> +	    !bdev->bd_disk->fops->sec_ops)
+> +		return -EOPNOTSUPP;
+You might consider pulling this boilerplate out into something like:
+static inline bool bdev_sec_capable(struct block_device *bdev)
+{
+	return bdev && bdev->bd_disk && bdev->bd_disk->fops &&
+	       bdev->bd_disk->fops->sec_ops;
+}
+
+
+> +
+> +	return opal_save(bdev, key);
+> +}
+> +
+> +static int sed_opal_lock_unlock(struct block_device *bdev, struct sed_key *key)
+> +{
+> +
+> +	if (!bdev || !bdev->bd_disk || !bdev->bd_disk->fops ||
+> +	    !bdev->bd_disk->fops->sec_ops)
+> +		return -EOPNOTSUPP;
+> +
+> +	return opal_lock_unlock(bdev, key);
+> +}
+> +
+> +static int sed_opal_take_ownership(struct block_device *bdev,
+> +				   struct sed_key *key)
+> +{
+> +
+> +	if (!bdev || !bdev->bd_disk || !bdev->bd_disk->fops ||
+> +	    !bdev->bd_disk->fops->sec_ops)
+> +		return -EOPNOTSUPP;
+> +
+> +	return opal_take_ownership(bdev, key);
+> +}
+> +
+> +static int sed_opal_activate_lsp(struct block_device *bdev,
+> +				 struct sed_key *key)
+> +{
+> +
+> +	if (!bdev || !bdev->bd_disk || !bdev->bd_disk->fops ||
+> +	    !bdev->bd_disk->fops->sec_ops)
+> +		return -EOPNOTSUPP;
+> +
+> +	return opal_activate_lsp(bdev, key);
+> +}
+> +
+> +static int sed_opal_set_pw(struct block_device *bdev,
+> +			   struct sed_key *key)
+> +{
+> +
+> +	if (!bdev || !bdev->bd_disk || !bdev->bd_disk->fops ||
+> +	    !bdev->bd_disk->fops->sec_ops)
+> +		return -EOPNOTSUPP;
+> +
+> +	return opal_set_new_pw(bdev, key);
+> +}
+> +
+> +static int sed_opal_activate_user(struct block_device *bdev,
+> +				  struct sed_key *key)
+> +{
+> +
+> +	if (!bdev || !bdev->bd_disk || !bdev->bd_disk->fops ||
+> +	    !bdev->bd_disk->fops->sec_ops)
+> +		return -EOPNOTSUPP;
+> +
+> +	return opal_activate_user(bdev, key);
+> +}
+> +
+> +static int sed_opal_reverttper(struct block_device *bdev,
+> +			       struct sed_key *key)
+> +{
+> +
+> +	if (!bdev || !bdev->bd_disk || !bdev->bd_disk->fops ||
+> +	    !bdev->bd_disk->fops->sec_ops)
+> +		return -EOPNOTSUPP;
+> +
+> +	return opal_reverttper(bdev, key);
+> +}
+> +
+> +static int sed_opal_setup_lr(struct block_device *bdev,
+> +			     struct sed_key *key)
+> +{
+> +
+> +	if (!bdev || !bdev->bd_disk || !bdev->bd_disk->fops ||
+> +	    !bdev->bd_disk->fops->sec_ops)
+> +		return -EOPNOTSUPP;
+> +
+> +	return opal_setup_locking_range(bdev, key);
+> +}
+> +
+> +static int sed_opal_adduser_to_lr(struct block_device *bdev,
+> +			     struct sed_key *key)
+> +{
+> +
+> +	if (!bdev || !bdev->bd_disk || !bdev->bd_disk->fops ||
+> +	    !bdev->bd_disk->fops->sec_ops)
+> +		return -EOPNOTSUPP;
+> +
+> +	return opal_add_user_to_lr(bdev, key);
+> +}
+> +
+> +static int sed_opal_do_mbr(struct block_device *bdev,
+> +			   struct sed_key *key)
+> +{
+> +
+> +	if (!bdev || !bdev->bd_disk || !bdev->bd_disk->fops ||
+> +	    !bdev->bd_disk->fops->sec_ops)
+> +		return -EOPNOTSUPP;
+> +
+> +	return opal_enable_disable_shadow_mbr(bdev, key);
+> +}
+> +
+> +static int sed_opal_erase_lr(struct block_device *bdev,
+> +			     struct sed_key *key)
+> +{
+> +
+> +	if (!bdev || !bdev->bd_disk || !bdev->bd_disk->fops ||
+> +	    !bdev->bd_disk->fops->sec_ops)
+> +		return -EOPNOTSUPP;
+> +
+> +	return opal_erase_locking_range(bdev, key);
+> +}
+> +#endif
+> +
+> +int sed_save(struct block_device *bdev, struct sed_key *key)
+> +{
+> +	if (!bdev || !bdev->bd_disk || !bdev->bd_disk->fops ||
+> +	    !bdev->bd_disk->fops->sec_ops)
+> +		return -EOPNOTSUPP;
+> +
+> +	switch (key->sed_type) {
+> +	case OPAL_LOCK_UNLOCK:
+> +		return sed_opal_save(bdev, key);
+> +	}
+> +
+> +	return -EOPNOTSUPP;
+> +}
+> +
+> +int sed_lock_unlock(struct block_device *bdev, struct sed_key *key)
+> +{
+> +	if (!bdev || !bdev->bd_disk || !bdev->bd_disk->fops ||
+> +	    !bdev->bd_disk->fops->sec_ops)
+> +		return -EOPNOTSUPP;
+> +
+> +	switch (key->sed_type) {
+> +	case OPAL_LOCK_UNLOCK:
+> +		return sed_opal_lock_unlock(bdev, key);
+> +	}
+> +
+> +	return -EOPNOTSUPP;
+> +}
+> +
+> +int sed_take_ownership(struct block_device *bdev, struct sed_key *key)
+> +{
+> +	if (!bdev || !bdev->bd_disk || !bdev->bd_disk->fops ||
+> +	    !bdev->bd_disk->fops->sec_ops)
+> +		return -EOPNOTSUPP;
+> +
+> +	switch (key->sed_type) {
+> +	case OPAL:
+> +		return sed_opal_take_ownership(bdev, key);
+> +	}
+> +
+> +	return -EOPNOTSUPP;
+> +}
+> +
+> +int sed_activate_lsp(struct block_device *bdev, struct sed_key *key)
+> +{
+> +	if (!bdev || !bdev->bd_disk || !bdev->bd_disk->fops ||
+> +	    !bdev->bd_disk->fops->sec_ops)
+> +		return -EOPNOTSUPP;
+> +
+> +	switch (key->sed_type) {
+> +	case OPAL:
+> +		return sed_opal_activate_lsp(bdev, key);
+> +	}
+> +
+> +	return -EOPNOTSUPP;
+> +}
+> +
+> +int sed_set_pw(struct block_device *bdev, struct sed_key *key)
+> +{
+> +	if (!bdev || !bdev->bd_disk || !bdev->bd_disk->fops ||
+> +	    !bdev->bd_disk->fops->sec_ops)
+> +		return -EOPNOTSUPP;
+> +
+> +	switch (key->sed_type) {
+> +	case OPAL_PW:
+> +		return sed_opal_set_pw(bdev, key);
+> +	}
+> +
+> +	return -EOPNOTSUPP;
+> +}
+> +
+> +int sed_activate_user(struct block_device *bdev, struct sed_key *key)
+> +{
+> +	if (!bdev || !bdev->bd_disk || !bdev->bd_disk->fops ||
+> +	    !bdev->bd_disk->fops->sec_ops)
+> +		return -EOPNOTSUPP;
+> +
+> +	switch (key->sed_type) {
+> +	case OPAL_ACT_USR:
+> +		return sed_opal_activate_user(bdev, key);
+> +	}
+> +
+> +	return -EOPNOTSUPP;
+> +}
+> +
+> +int sed_reverttper(struct block_device *bdev, struct sed_key *key)
+> +{
+> +	if (!bdev || !bdev->bd_disk || !bdev->bd_disk->fops ||
+> +	    !bdev->bd_disk->fops->sec_ops)
+> +		return -EOPNOTSUPP;
+> +
+> +	switch (key->sed_type) {
+> +	case OPAL:
+> +		return sed_opal_reverttper(bdev, key);
+> +	}
+> +
+> +	return -EOPNOTSUPP;
+> +}
+> +
+> +int sed_setup_locking_range(struct block_device *bdev, struct sed_key *key)
+> +{
+> +	if (!bdev || !bdev->bd_disk || !bdev->bd_disk->fops ||
+> +	    !bdev->bd_disk->fops->sec_ops)
+> +		return -EOPNOTSUPP;
+> +
+> +	switch (key->sed_type) {
+> +	case OPAL_LR_SETUP:
+> +		return sed_opal_setup_lr(bdev, key);
+> +	}
+> +
+> +	return -EOPNOTSUPP;
+> +}
+> +
+> +int sed_adduser_to_lr(struct block_device *bdev, struct sed_key *key)
+> +{
+> +	if (!bdev || !bdev->bd_disk || !bdev->bd_disk->fops ||
+> +	    !bdev->bd_disk->fops->sec_ops)
+> +		return -EOPNOTSUPP;
+> +
+> +	switch (key->sed_type) {
+> +	case OPAL_LOCK_UNLOCK:
+> +		return sed_opal_adduser_to_lr(bdev, key);
+> +	}
+> +
+> +	return -EOPNOTSUPP;
+> +}
+> +
+> +int sed_do_mbr(struct block_device *bdev, struct sed_key *key)
+> +{
+> +	if (!bdev || !bdev->bd_disk || !bdev->bd_disk->fops ||
+> +	    !bdev->bd_disk->fops->sec_ops)
+> +		return -EOPNOTSUPP;
+> +
+> +	switch (key->sed_type) {
+> +	case OPAL_MBR_DATA:
+> +		return sed_opal_do_mbr(bdev, key);
+> +	}
+> +
+> +	return -EOPNOTSUPP;
+> +}
+> +
+> +int sed_erase_lr(struct block_device *bdev, struct sed_key *key)
+> +{
+> +	if (!bdev || !bdev->bd_disk || !bdev->bd_disk->fops ||
+> +	    !bdev->bd_disk->fops->sec_ops)
+> +		return -EOPNOTSUPP;
+> +
+> +	switch (key->sed_type) {
+> +	case OPAL:
+> +		return sed_opal_erase_lr(bdev, key);
+> +	}
+> +
+> +	return -EOPNOTSUPP;
+> +}
+> -- 
+> 2.7.4
+>
diff --git a/a/content_digest b/N1/content_digest
index dfb67ed..6f0b57e 100644
--- a/a/content_digest
+++ b/N1/content_digest
@@ -1,2015 +1,4426 @@
  "ref\01477951099-3127-1-git-send-email-scott.bauer@intel.com\0"
  "ref\01477951099-3127-3-git-send-email-scott.bauer@intel.com\0"
- "From\0Jon Derrick <jonathan.derrick@intel.com>\0"
- "Subject\0Re: [RFC PATCH 2/6] lib: Add Sed-opal library\0"
+ "From\0jonathan.derrick@intel.com (Jon Derrick)\0"
+ "Subject\0[RFC PATCH 2/6] lib: Add Sed-opal library\0"
  "Date\0Tue, 1 Nov 2016 12:56:11 -0600\0"
- "To\0Scott Bauer <scott.bauer@intel.com>\0"
- "Cc\0keith.busch@intel.com"
-  hch@infradead.org
-  Rafael.Antognolli@intel.com
-  linux-nvme@lists.infradead.org
-  axboe@fb.com
-  linux-block@vger.kernel.org
- " j.naumann@fu-berlin.de\0"
  "\00:1\0"
  "b\0"
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+ "Hi Rafael, Scott,\n"
+ "\n"
+ "\n"
+ "First off, congrats on the set! It looks good so far.\n"
+ "\n"
+ "Just some small nits below since you have to respin it anyways :)\n"
+ "\n"
+ "On Mon, Oct 31, 2016@03:58:15PM -0600, Scott Bauer wrote:\n"
+ "> This patch implements the necessary logic to bring an Opal\n"
+ "> enabled drive out of a factory-enabled into a working\n"
+ "> Opal state.\n"
+ "> \n"
+ "> This patch set also enables logic to save a password to\n"
+ "> be replayed during a resume from suspend. The key can be\n"
+ "> saved in the driver or in the Kernel's Key managment.\n"
+ "> \n"
+ "> Signed-off-by: Scott Bauer <scott.bauer at intel.com>\n"
+ "> Signed-off-by: Rafael Antognolli <Rafael.Antognolli at intel.com>\n"
+ "> ---\n"
+ ">  lib/sed-opal.c          | 3337 +++++++++++++++++++++++++++++++++++++++++++++++\n"
+ ">  lib/sed-opal_internal.h |  586 +++++++++\n"
+ ">  lib/sed-opal_key.c      |   46 +\n"
+ ">  lib/sed.c               |  303 +++++\n"
+ ">  4 files changed, 4272 insertions(+)\n"
+ ">  create mode 100644 lib/sed-opal.c\n"
+ ">  create mode 100644 lib/sed-opal_internal.h\n"
+ ">  create mode 100644 lib/sed-opal_key.c\n"
+ ">  create mode 100644 lib/sed.c\n"
+ "> \n"
+ "> diff --git a/lib/sed-opal.c b/lib/sed-opal.c\n"
+ "> new file mode 100644\n"
+ "> index 0000000..10b3348\n"
+ "> --- /dev/null\n"
+ "> +++ b/lib/sed-opal.c\n"
+ "> @@ -0,0 +1,3337 @@\n"
+ "> +/*\n"
+ "> + * Copyright ? 2016 Intel Corporation\n"
+ "> + *\n"
+ "> + * Permission is hereby granted, free of charge, to any person obtaining a\n"
+ "> + * copy of this software and associated documentation files (the \"Software\"),\n"
+ "> + * to deal in the Software without restriction, including without limitation\n"
+ "> + * the rights to use, copy, modify, merge, publish, distribute, sublicense,\n"
+ "> + * and/or sell copies of the Software, and to permit persons to whom the\n"
+ "> + * Software is furnished to do so, subject to the following conditions:\n"
+ "> + *\n"
+ "> + * The above copyright notice and this permission notice (including the next\n"
+ "> + * paragraph) shall be included in all copies or substantial portions of the\n"
+ "> + * Software.\n"
+ "> + *\n"
+ "> + * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n"
+ "> + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n"
+ "> + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL\n"
+ "> + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n"
+ "> + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n"
+ "> + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n"
+ "> + * IN THE SOFTWARE.\n"
+ "> + *\n"
+ "> + * Authors:\n"
+ "> + *    Rafael Antognolli <rafael.antognolli at intel.com>\n"
+ "> + *    Scott  Bauer      <scott.bauer at intel.com>\n"
+ "> + */\n"
+ "> +\n"
+ "> +#define pr_fmt(fmt) KBUILD_MODNAME \":OPAL: \" fmt\n"
+ "> +\n"
+ "> +#include <linux/delay.h>\n"
+ "> +#include <linux/device.h>\n"
+ "> +#include <linux/kernel.h>\n"
+ "> +#include <linux/list.h>\n"
+ "> +#include <linux/genhd.h>\n"
+ "> +#include <linux/slab.h>\n"
+ "> +#include <linux/uaccess.h>\n"
+ "> +#include <uapi/linux/sed-opal.h>\n"
+ "> +#include <linux/sed.h>\n"
+ "> +#include <linux/sed-opal.h>\n"
+ "> +#include <linux/string.h>\n"
+ "> +\n"
+ "> +#include \"sed-opal_internal.h\"\n"
+ "> +\n"
+ "> +#define IO_BUFFER_LENGTH 2048\n"
+ "> +\n"
+ "> +#define MAX_TOKS 64\n"
+ "> +\n"
+ "> +struct opal_cmd {\n"
+ "> +\tstruct block_device *bdev;\n"
+ "> +\tsec_cb *cb;\n"
+ "> +\tvoid *cb_data;\n"
+ "> +\n"
+ "> +\tsize_t pos;\n"
+ "> +\tu8 cmd_buf[IO_BUFFER_LENGTH * 2];\n"
+ "> +\tu8 resp_buf[IO_BUFFER_LENGTH * 2];\n"
+ "> +\tu8 *cmd;\n"
+ "> +\tu8 *resp;\n"
+ "> +};\n"
+ "> +\n"
+ "> +/*\n"
+ "> + * On the parsed response, we don't store again the toks that are already\n"
+ "> + * stored in the response buffer. Instead, for each token, we just store a\n"
+ "> + * pointer to the position in the buffer where the token starts, and the size\n"
+ "> + * of the token in bytes.\n"
+ "> + */\n"
+ "> +struct opal_resp_tok {\n"
+ "> +\tconst u8 *pos;\n"
+ "> +\tsize_t len;\n"
+ "> +\tenum OPAL_RESPONSE_TOKEN type;\n"
+ "> +\tenum OPAL_ATOM_WIDTH width;\n"
+ "> +\tunion {\n"
+ "> +\t\tu64 u;\n"
+ "> +\t\ts64 s;\n"
+ "> +\t} stored;\n"
+ "> +};\n"
+ "> +\n"
+ "> +/*\n"
+ "> + * From the response header it's not possible to know how many tokens there are\n"
+ "> + * on the payload. So we hardcode that the maximum will be MAX_TOKS, and later\n"
+ "> + * if we start dealing with messages that have more than that, we can increase\n"
+ "> + * this number. This is done to avoid having to make two passes through the\n"
+ "> + * response, the first one counting how many tokens we have and the second one\n"
+ "> + * actually storing the positions.\n"
+ "> + */\n"
+ "> +struct parsed_resp {\n"
+ "> +\tint num;\n"
+ "> +\tstruct opal_resp_tok toks[MAX_TOKS];\n"
+ "> +};\n"
+ "> +\n"
+ "> +struct opal_dev;\n"
+ "> +\n"
+ "> +typedef void (*opal_cb)(int error, struct opal_dev *dev);\n"
+ "> +\n"
+ "> +typedef int (*opal_step)(struct opal_dev *dev);\n"
+ "> +\n"
+ "> +struct opal_completion {\n"
+ "> +\tstruct completion cmd_completion;\n"
+ "> +\tint completion_status;\n"
+ "> +};\n"
+ "> +\n"
+ "> +struct opal_dev {\n"
+ "> +\tstruct block_device *bdev;\n"
+ "> +\tstruct opal_completion *completion;\n"
+ "> +\tstruct opal_lock_unlock lkul;\n"
+ "> +\tconst opal_step *funcs;\n"
+ "> +\tvoid **func_data;\n"
+ "> +\tbool resume_from_suspend;\n"
+ "> +\tstruct opal_suspend_unlk *resume_data;\n"
+ "> +\tsize_t num_func_data;\n"
+ "> +\tatomic_t in_use;\n"
+ "> +\tsector_t start;\n"
+ "> +\tsector_t length;\n"
+ "> +\tu8 lr;\n"
+ "> +\tu8 key_type;\n"
+ "> +\tu8 key_name[OPAL_KEY_MAX];\n"
+ "> +\tsize_t key_name_len;\n"
+ "> +\tu8 key[OPAL_KEY_MAX];\n"
+ "> +\tsize_t key_len;\n"
+ "> +\tu16 comID;\n"
+ "> +\tu32 HSN;\n"
+ "> +\tu32 TSN;\n"
+ "> +\tu64 align;\n"
+ "> +\tu64 lowest_lba;\n"
+ "> +\tstruct list_head node;\n"
+ "> +\tchar disk_name[DISK_NAME_LEN];\n"
+ "> +\tint state;\n"
+ "> +\n"
+ "> +\tstruct opal_cmd cmd;\n"
+ "> +\tstruct parsed_resp parsed;\n"
+ "> +\n"
+ "> +\tsize_t prev_d_len;\n"
+ "> +\tvoid *prev_data;\n"
+ "> +\n"
+ "> +\tsec_cb *final_cb;\n"
+ "> +\tvoid *final_cb_data;\n"
+ "> +\topal_step error_cb;\n"
+ "> +\tvoid *error_cb_data;\n"
+ "> +\topal_cb oper_cb;\n"
+ "> +};\n"
+ "> +\n"
+ "> +LIST_HEAD(opal_list);\n"
+ "> +DEFINE_SPINLOCK(list_spinlock);\n"
+ "> +\n"
+ "> +static void print_buffer(const u8 *ptr, u32 length)\n"
+ "> +{\n"
+ "> +#ifdef DEBUG\n"
+ "> +\tprint_hex_dump_bytes(\"OPAL: \", DUMP_PREFIX_OFFSET, ptr, length);\n"
+ "> +\tpr_debug(\"\\n\");\n"
+ "> +#endif\n"
+ "> +}\n"
+ "> +\n"
+ "> +#define TPER_SYNC_SUPPORTED BIT(0)\n"
+ "> +\n"
+ "> +static bool check_tper(const void *data)\n"
+ "> +{\n"
+ "> +\tconst struct d0_tper_features *tper = data;\n"
+ "> +\tu8 flags = tper->supported_features;\n"
+ "> +\n"
+ "> +\tif (!(flags & TPER_SYNC_SUPPORTED)) {\n"
+ "> +\t\tpr_err(\"TPer sync not supported. flags = %d\\n\",\n"
+ "> +\t\t       tper->supported_features);\n"
+ "> +\t\treturn false;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\treturn true;\n"
+ "> +}\n"
+ "> +\n"
+ "> +static bool check_SUM(const void *data)\n"
+ "> +{\n"
+ "> +\tconst struct d0_single_user_mode *sum = data;\n"
+ "> +\tu32 nlo = be32_to_cpu(sum->num_locking_objects);\n"
+ "> +\n"
+ "> +\tif (nlo == 0) {\n"
+ "> +\t\tpr_err(\"Need at least one locking object.\\n\");\n"
+ "> +\t\treturn false;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tpr_debug(\"Number of locking objects: %d\\n\", nlo);\n"
+ "> +\n"
+ "> +\treturn true;\n"
+ "> +}\n"
+ "> +\n"
+ "> +static u16 get_comID_v100(const void *data)\n"
+ "> +{\n"
+ "> +\tconst struct d0_opal_v100 *v100 = data;\n"
+ "> +\n"
+ "> +\treturn be16_to_cpu(v100->baseComID);\n"
+ "> +}\n"
+ "> +\n"
+ "> +static u16 get_comID_v200(const void *data)\n"
+ "> +{\n"
+ "> +\tconst struct d0_opal_v200 *v200 = data;\n"
+ "> +\n"
+ "> +\treturn be16_to_cpu(v200->baseComID);\n"
+ "> +}\n"
+ "> +\n"
+ "> +static int __opal_send_cmd(struct opal_suspend_unlk *data, u16 comID,\n"
+ "> +\t\t\t   void *buffer, size_t buflen, sec_cb *cb,\n"
+ "> +\t\t\t   void *cb_data)\n"
+ "> +{\n"
+ "> +\treturn data->ops.send(data->data, comID, TCG_SECP_01, buffer, buflen,\n"
+ "> +\t\t\t     cb, cb_data);\n"
+ "> +}\n"
+ "> +static int _opal_send_cmd(struct block_device *bdev, u16 comID,\n"
+ "> +\t\t\t  void *buffer, size_t buflen,\n"
+ "> +\t\t\t  sec_cb *cb, void *cb_data)\n"
+ "> +{\n"
+ "> +\tconst struct sec_ops *ops = bdev->bd_disk->fops->sec_ops;\n"
+ "> +\n"
+ "> +\treturn ops->send(bdev->bd_disk->private_data, comID,\n"
+ "> +\t\t\t TCG_SECP_01, buffer, buflen,\n"
+ "> +\t\t\t cb, cb_data);\n"
+ "> +}\n"
+ "> +\n"
+ "> +static int __opal_recv_cmd(struct opal_suspend_unlk *data, u16 comID,\n"
+ "> +\t\t\t   void *buffer, size_t buflen, sec_cb *cb,\n"
+ "> +\t\t\t   void *cb_data)\n"
+ "> +{\n"
+ "> +\treturn data->ops.recv(data->data, comID, TCG_SECP_01, buffer, buflen,\n"
+ "> +\t\t\t     cb, cb_data);\n"
+ "> +}\n"
+ "> +\n"
+ "> +static int _opal_recv_cmd(struct block_device *bdev, u16 comID,\n"
+ "> +\t\t\t  void *buffer, size_t buflen,\n"
+ "> +\t\t\t  sec_cb *cb, void *cb_data)\n"
+ "> +{\n"
+ "> +\tconst struct sec_ops *ops = bdev->bd_disk->fops->sec_ops;\n"
+ "> +\n"
+ "> +\treturn ops->recv(bdev->bd_disk->private_data, comID,\n"
+ "> +\t\t\t TCG_SECP_01, buffer, buflen,\n"
+ "> +\t\t\t cb, cb_data);\n"
+ "> +}\n"
+ "> +\n"
+ "> +static void opal_send_cb_cont(int error, void *data)\n"
+ "> +{\n"
+ "> +\tstruct opal_dev *dev = data;\n"
+ "> +\tsize_t buflen = IO_BUFFER_LENGTH;\n"
+ "> +\tvoid *buffer = dev->cmd.resp;\n"
+ "> +\tstruct opal_header *hdr = buffer;\n"
+ "> +\n"
+ "> +\tpr_debug(\"%s: Sent OPAL command: error=%d, outstanding=%d, minTransfer=%d\\n\",\n"
+ "> +\t       dev->disk_name, error, hdr->cp.outstandingData,\n"
+ "> +\t       hdr->cp.minTransfer);\n"
+ "> +\n"
+ "> +\tif (error || hdr->cp.outstandingData == 0 ||\n"
+ "> +\t    hdr->cp.minTransfer != 0) {\n"
+ "> +\t\tif (dev->cmd.cb)\n"
+ "> +\t\t\tdev->cmd.cb(error, dev->cmd.cb_data);\n"
+ "> +\t\treturn;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tmemset(buffer, 0, buflen);\n"
+ "> +\tif (dev->resume_from_suspend)\n"
+ "> +\t\t__opal_recv_cmd(dev->resume_data, dev->comID,\n"
+ "> +\t\t\t\tbuffer, buflen, opal_send_cb_cont, dev);\n"
+ "> +\telse\n"
+ "> +\t\t_opal_recv_cmd(dev->bdev, dev->comID, buffer, buflen,\n"
+ "> +\t\t\t       opal_send_cb_cont, dev);\n"
+ "> +}\n"
+ "> +\n"
+ "> +static void opal_send_cb(int error, void *data)\n"
+ "> +{\n"
+ "> +\tstruct opal_dev *dev = data;\n"
+ "> +\tsize_t buflen = IO_BUFFER_LENGTH;\n"
+ "> +\tvoid *buffer = dev->cmd.resp;\n"
+ "> +\n"
+ "> +\tif (error) {\n"
+ "> +\t\tif (dev->cmd.cb)\n"
+ "> +\t\t\tdev->cmd.cb(error, dev->cmd.cb_data);\n"
+ "> +\t\treturn;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tmemset(buffer, 0, buflen);\n"
+ "> +\tif (dev->resume_from_suspend)\n"
+ "> +\t\t__opal_recv_cmd(dev->resume_data, dev->comID,\n"
+ "> +\t\t\t\tbuffer, buflen, opal_send_cb_cont, dev);\n"
+ "> +\telse\n"
+ "> +\t\t_opal_recv_cmd(dev->bdev, dev->comID, buffer, buflen,\n"
+ "> +\t\t\t       opal_send_cb_cont, dev);\n"
+ "> +}\n"
+ "> +\n"
+ "> +static int opal_send_recv(struct opal_dev *dev, sec_cb *cb, void *cb_data)\n"
+ "> +{\n"
+ "> +\tsize_t buflen = IO_BUFFER_LENGTH;\n"
+ "> +\tvoid *buffer = dev->cmd.cmd;\n"
+ "> +\tint ret;\n"
+ "> +\n"
+ "> +\tdev->cmd.cb = cb;\n"
+ "> +\tdev->cmd.cb_data = cb_data;\n"
+ "> +\tif (dev->resume_from_suspend)\n"
+ "> +\t\tret = __opal_send_cmd(dev->resume_data, dev->comID, buffer,\n"
+ "> +\t\t\t\t      buflen, opal_send_cb, dev);\n"
+ "> +\telse\n"
+ "> +\t\tret = _opal_send_cmd(dev->bdev, dev->comID, buffer, buflen,\n"
+ "> +\t\t\t\t     opal_send_cb, dev);\n"
+ "> +\n"
+ "> +\treturn ret;\n"
+ "> +}\n"
+ "> +\n"
+ "> +static void check_geometry(struct opal_dev *dev, const void *data)\n"
+ "> +{\n"
+ "> +\tconst struct d0_geometry_features *geo = data;\n"
+ "> +\n"
+ "> +\tdev->align = geo->alignment_granularity;\n"
+ "> +\tdev->lowest_lba = geo->lowest_aligned_lba;\n"
+ "> +}\n"
+ "> +\n"
+ "> +static void opal_discovery0_end(int error, void *data)\n"
+ "> +{\n"
+ "> +\tbool foundComID = false, supported = true, single_user = false;\n"
+ "> +\tstruct opal_dev *dev = data;\n"
+ "> +\tconst struct d0_header *hdr;\n"
+ "> +\tconst u8 *epos, *cpos;\n"
+ "> +\tu16 comID = 0;\n"
+ "> +\n"
+ "> +\tif (error) {\n"
+ "> +\t\tpr_err(\"%s: Sending discovery0 failed\\n\", dev->disk_name);\n"
+ "> +\t\tgoto err_callback;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tepos = dev->cmd.resp;\n"
+ "> +\tcpos = dev->cmd.resp;\n"
+ "> +\thdr = (struct d0_header *)dev->cmd.resp;\n"
+ "> +\n"
+ "> +\tprint_buffer(dev->cmd.resp, be32_to_cpu(hdr->length));\n"
+ "> +\n"
+ "> +\tepos += be32_to_cpu(hdr->length); /* end of buffer */\n"
+ "> +\tcpos += sizeof(*hdr); /* current position on buffer */\n"
+ "> +\n"
+ "> +\twhile (cpos < epos && supported) {\n"
+ "> +\t\tconst struct d0_features *body =\n"
+ "> +\t\t\t(const struct d0_features *)cpos;\n"
+ "> +\n"
+ "> +\t\tswitch (be16_to_cpu(body->code)) {\n"
+ "> +\t\tcase FC_TPER:\n"
+ "> +\t\t\tsupported = check_tper(body->features);\n"
+ "> +\t\t\tbreak;\n"
+ "> +\t\tcase FC_SINGLEUSER:\n"
+ "> +\t\t\tsingle_user = check_SUM(body->features);\n"
+ "> +\t\t\tbreak;\n"
+ "> +\t\tcase FC_GEOMETRY:\n"
+ "> +\t\t\tcheck_geometry(dev, body);\n"
+ "> +\t\t\tbreak;\n"
+ "> +\t\tcase FC_LOCKING:\n"
+ "> +\t\tcase FC_ENTERPRISE:\n"
+ "> +\t\tcase FC_DATASTORE:\n"
+ "> +\t\t\t/* some ignored properties */\n"
+ "> +\t\t\tpr_debug(\"%s: Found OPAL feature description: %d\\n\",\n"
+ "> +\t\t\t\t dev->disk_name, be16_to_cpu(body->code));\n"
+ "> +\t\t\tbreak;\n"
+ "> +\t\tcase FC_OPALV100:\n"
+ "> +\t\t\tcomID = get_comID_v100(body->features);\n"
+ "> +\t\t\tfoundComID = true;\n"
+ "> +\t\t\tbreak;\n"
+ "> +\t\tcase FC_OPALV200:\n"
+ "> +\t\t\tcomID = get_comID_v200(body->features);\n"
+ "> +\t\t\tfoundComID = true;\n"
+ "> +\t\t\tbreak;\n"
+ "> +\t\tdefault:\n"
+ "> +\t\t\tif (be16_to_cpu(body->code) > 0xbfff) {\n"
+ "> +\t\t\t\t/* vendor specific, just ignore */\n"
+ "> +\t\t\t} else {\n"
+ "> +\t\t\t\tpr_warn(\"%s: OPAL Unknown feature: %d\\n\",\n"
+ "> +\t\t\t\t\tdev->disk_name, be16_to_cpu(body->code));\n"
+ "> +\t\t\t}\n"
+ "Small nit, how about:\n"
+ "\n"
+ "case 0xbfff ... 0xffff:\n"
+ "\t/* vendor specific, just ignore */\n"
+ "\tbreak;\n"
+ "default:\n"
+ "\tpr_warn(...\n"
+ "\n"
+ "\n"
+ "\n"
+ "> +\t\t}\n"
+ "> +\t\tcpos += body->length + 4;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tif (!supported) {\n"
+ "> +\t\tpr_err(\"%s: Device not supported\\n\", dev->disk_name);\n"
+ "> +\t\tgoto err_callback;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tif (!single_user)\n"
+ "> +\t\tpr_warn(\"%s: Device doesn't support single user mode\\n\",\n"
+ "> +\t\t\tdev->disk_name);\n"
+ "> +\n"
+ "> +\tif (!foundComID) {\n"
+ "> +\t\tpr_warn(\"%s: Could not find OPAL comID for device. OPAL kernel unlocking will be disabled\\n\",\n"
+ "> +\t\t\tdev->disk_name);\n"
+ "> +\t\tgoto err_callback;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tdev->comID = comID;\n"
+ "> +\n"
+ "> +err_callback:\n"
+ "> +\tif (dev->oper_cb)\n"
+ "> +\t\tdev->oper_cb(error, dev);\n"
+ "> +}\n"
+ "> +\n"
+ "> +static int opal_discovery0(struct opal_dev *dev)\n"
+ "> +{\n"
+ "> +\tmemset(dev->cmd.resp, 0, IO_BUFFER_LENGTH);\n"
+ "> +\n"
+ "> +\tif (dev->resume_from_suspend)\n"
+ "> +\t\treturn __opal_recv_cmd(dev->resume_data, 0x0001,\n"
+ "> +\t\t\t\t       dev->cmd.resp, IO_BUFFER_LENGTH,\n"
+ "> +\t\t\t\t       opal_discovery0_end, dev);\n"
+ "> +\n"
+ "> +\treturn _opal_recv_cmd(dev->bdev, 0x0001, dev->cmd.resp,\n"
+ "> +\t\t\t      IO_BUFFER_LENGTH, opal_discovery0_end,\n"
+ "> +\t\t\t      dev);\n"
+ "> +}\n"
+ "> +\n"
+ "> +static void add_token_u8(struct opal_cmd *cmd, u8 tok)\n"
+ "> +{\n"
+ "> +\tcmd->cmd[cmd->pos++] = tok;\n"
+ "> +}\n"
+ "> +\n"
+ "> +static ssize_t test_and_add_token_u8(struct opal_cmd *cmd, u8 tok)\n"
+ "> +{\n"
+ "> +\tBUILD_BUG_ON(IO_BUFFER_LENGTH >= SIZE_MAX);\n"
+ "> +\n"
+ "> +\tif (cmd->pos >= IO_BUFFER_LENGTH - 1) {\n"
+ "> +\t\tpr_err(\"Error adding u8: end of buffer.\\n\");\n"
+ "> +\t\treturn -ERANGE;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tadd_token_u8(cmd, tok);\n"
+ "> +\n"
+ "> +\treturn 1;\n"
+ "> +}\n"
+ "> +\n"
+ "> +#define TINY_ATOM_DATA_MASK GENMASK(5, 0)\n"
+ "> +#define TINY_ATOM_SIGNED BIT(6)\n"
+ "> +\n"
+ "> +#define SHORT_ATOM_ID BIT(7)\n"
+ "> +#define SHORT_ATOM_BYTESTRING BIT(5)\n"
+ "> +#define SHORT_ATOM_SIGNED BIT(4)\n"
+ "> +#define SHORT_ATOM_LEN_MASK GENMASK(3, 0)\n"
+ "> +\n"
+ "> +static void add_short_atom_header(struct opal_cmd *cmd, bool bytestring,\n"
+ "> +\t\t\t\t  bool has_sign, int len)\n"
+ "> +{\n"
+ "> +\tu8 atom;\n"
+ "> +\n"
+ "> +\tatom = SHORT_ATOM_ID;\n"
+ "> +\tatom |= bytestring ? SHORT_ATOM_BYTESTRING : 0;\n"
+ "> +\tatom |= has_sign ? SHORT_ATOM_SIGNED : 0;\n"
+ "> +\tatom |= len & SHORT_ATOM_LEN_MASK;\n"
+ "> +\n"
+ "> +\tadd_token_u8(cmd, atom);\n"
+ "> +}\n"
+ "> +\n"
+ "> +#define MEDIUM_ATOM_ID (BIT(7) | BIT(6))\n"
+ "> +#define MEDIUM_ATOM_BYTESTRING BIT(4)\n"
+ "> +#define MEDIUM_ATOM_SIGNED BIT(3)\n"
+ "> +#define MEDIUM_ATOM_LEN_MASK GENMASK(2, 0)\n"
+ "> +\n"
+ "> +static void add_medium_atom_header(struct opal_cmd *cmd, bool bytestring,\n"
+ "> +\t\t\t\t   bool has_sign, int len)\n"
+ "> +{\n"
+ "> +\tu8 header0;\n"
+ "> +\n"
+ "> +\theader0 = MEDIUM_ATOM_ID;\n"
+ "> +\theader0 |= bytestring ? MEDIUM_ATOM_BYTESTRING : 0;\n"
+ "> +\theader0 |= has_sign ? MEDIUM_ATOM_SIGNED : 0;\n"
+ "> +\theader0 |= (len >> 8) & MEDIUM_ATOM_LEN_MASK;\n"
+ "> +\tcmd->cmd[cmd->pos++] = header0;\n"
+ "> +\tcmd->cmd[cmd->pos++] = len;\n"
+ "> +}\n"
+ "> +\n"
+ "> +static void add_token_u64(struct opal_cmd *cmd, u64 number, size_t len)\n"
+ "> +{\n"
+ "> +\tadd_short_atom_header(cmd, false, false, len);\n"
+ "> +\n"
+ "> +\twhile (len--) {\n"
+ "> +\t\tu8 n = number >> (len * 8);\n"
+ "> +\n"
+ "> +\t\tadd_token_u8(cmd, n);\n"
+ "> +\t}\n"
+ "> +}\n"
+ "> +\n"
+ "> +static ssize_t test_and_add_token_u64(struct opal_cmd *cmd, u64 number)\n"
+ "> +{\n"
+ "> +\tint len;\n"
+ "> +\tint msb;\n"
+ "> +\n"
+ "> +\tif (!(number & ~TINY_ATOM_DATA_MASK))\n"
+ "> +\t\treturn test_and_add_token_u8(cmd, number);\n"
+ "> +\n"
+ "> +\tmsb = fls(number);\n"
+ "> +\tlen = DIV_ROUND_UP(msb, 4);\n"
+ "> +\n"
+ "> +\tif (cmd->pos >= IO_BUFFER_LENGTH - len - 1) {\n"
+ "> +\t\tpr_err(\"Error adding u64: end of buffer.\\n\");\n"
+ "> +\t\treturn -ERANGE;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tadd_token_u64(cmd, number, len);\n"
+ "> +\n"
+ "> +\t/* return length of token plus atom */\n"
+ "> +\treturn len + 1;\n"
+ "> +}\n"
+ "> +\n"
+ "> +static void add_token_bytestring(struct opal_cmd *cmd,\n"
+ "> +\t\t\t\t const u8 *bytestring, size_t len)\n"
+ "> +{\n"
+ "> +\tmemcpy(&cmd->cmd[cmd->pos], bytestring, len);\n"
+ "> +\tcmd->pos += len;\n"
+ "> +}\n"
+ "> +\n"
+ "> +static ssize_t test_and_add_token_bytestring(struct opal_cmd *cmd,\n"
+ "> +\t\t\t\t\t     const u8 *bytestring, size_t len)\n"
+ "> +{\n"
+ "> +\tsize_t header_len = 1;\n"
+ "> +\tbool is_short_atom = true;\n"
+ "> +\n"
+ "> +\tif (len & ~SHORT_ATOM_LEN_MASK) {\n"
+ "> +\t\theader_len = 2;\n"
+ "> +\t\tis_short_atom = false;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tif (cmd->pos >= IO_BUFFER_LENGTH - len - header_len) {\n"
+ "> +\t\tpr_err(\"Error adding bytestring: end of buffer.\\n\");\n"
+ "> +\t\treturn -ERANGE;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tif (is_short_atom)\n"
+ "> +\t\tadd_short_atom_header(cmd, true, false, len);\n"
+ "> +\telse\n"
+ "> +\t\tadd_medium_atom_header(cmd, true, false, len);\n"
+ "> +\n"
+ "> +\tadd_token_bytestring(cmd, bytestring, len);\n"
+ "> +\n"
+ "> +\treturn header_len + len;\n"
+ "> +}\n"
+ "> +\n"
+ "> +#define LOCKING_RANGE_NON_GLOBAL 0x03\n"
+ "> +\n"
+ "> +static int build_locking_range(u8 *buffer, size_t length, u8 lr)\n"
+ "> +{\n"
+ "> +\tif (length < OPAL_UID_LENGTH)\n"
+ "> +\t\treturn -ERANGE;\n"
+ "> +\n"
+ "> +\tmemcpy(buffer, OPALUID[OPAL_LOCKINGRANGE_GLOBAL], OPAL_UID_LENGTH);\n"
+ "> +\n"
+ "> +\tif (lr == 0)\n"
+ "> +\t\treturn 0;\n"
+ "> +\tbuffer[5] = LOCKING_RANGE_NON_GLOBAL;\n"
+ "> +\tbuffer[7] = lr;\n"
+ "> +\n"
+ "> +\treturn 0;\n"
+ "> +}\n"
+ "> +\n"
+ "> +static int build_locking_user(u8 *buffer, size_t length, u8 lr)\n"
+ "> +{\n"
+ "> +\tif (length < OPAL_UID_LENGTH)\n"
+ "> +\t\treturn -ERANGE;\n"
+ "> +\n"
+ "> +\tmemcpy(buffer, OPALUID[OPAL_USER1_UID], OPAL_UID_LENGTH);\n"
+ "> +\n"
+ "> +\tbuffer[7] = lr + 1;\n"
+ "> +\n"
+ "> +\treturn 0;\n"
+ "> +}\n"
+ "> +\n"
+ "> +/*\n"
+ "> + * N = number of format specifiers (1-999) to be replicated\n"
+ "> + * c = u8\n"
+ "> + * u = u64\n"
+ "> + * s = bytestring, length\n"
+ "> + *\n"
+ "> + * ret = test_and_add_token_va(cmd, \"c\",\n"
+ "> + *\t\t\t       u8_val1);\n"
+ "> + *\n"
+ "> + * ret = test_and_add_token_va(cmd, \"2c2u\",\n"
+ "> + *\t\t\t       u8_val1, u8_val2, u64_val1, u64_val2);\n"
+ "> + *\n"
+ "> + * ret = test_and_add_token_va(cmd, \"3s\",\n"
+ "> + *\t\t\t       bytestring1, length1,\n"
+ "> + *\t\t\t       bytestring2, length2,\n"
+ "> + *\t\t\t       bytestring3, length3);\n"
+ "> + */\n"
+ "> +static int test_and_add_token_va(struct opal_cmd *cmd,\n"
+ "> +\t\t\t\t const char *fmt, ...)\n"
+ "> +{\n"
+ "> +\tconst u8 *it = fmt, *tmp;\n"
+ "> +\tint ret, num = 1, sum = 0;\n"
+ "> +\tva_list ap;\n"
+ "> +\n"
+ "> +\tva_start(ap, fmt);\n"
+ "> +\n"
+ "> +\twhile (*it != '\\0') {\n"
+ "> +\t\tu64 tok64 = 0;\n"
+ "> +\t\tu8 tok, *bstr;\n"
+ "> +\t\tsize_t len;\n"
+ "> +\n"
+ "> +\t\tret = 0;\n"
+ "> +\n"
+ "> +\t\tswitch (*it) {\n"
+ "> +\t\tcase '1' ... '9':\n"
+ "> +\t\t\ttmp = it;\n"
+ "> +\t\t\tnum = 0;\n"
+ "> +\t\t\twhile (*tmp >= '0' && *tmp <= '9')\n"
+ "> +\t\t\t\tnum = num * 10 + (*tmp++ - '0');\n"
+ "> +\t\t\tit = tmp;\n"
+ "> +\t\t\tcontinue;\n"
+ "> +\t\tcase 'c':\n"
+ "> +\t\t\twhile (num--) {\n"
+ "> +\t\t\t\ttok = va_arg(ap, unsigned int);\n"
+ "> +\t\t\t\tret = test_and_add_token_u8(cmd, tok);\n"
+ "> +\t\t\t\tif (ret < 0)\n"
+ "> +\t\t\t\t\tgoto err;\n"
+ "> +\t\t\t}\n"
+ "> +\t\t\tnum = 1;\n"
+ "> +\t\t\tbreak;\n"
+ "> +\t\tcase 'u':\n"
+ "> +\t\t\twhile (num--) {\n"
+ "> +\t\t\t\ttok64 = va_arg(ap, u64);\n"
+ "> +\t\t\t\tret = test_and_add_token_u64(cmd, tok64);\n"
+ "> +\t\t\t\tif (ret < 0)\n"
+ "> +\t\t\t\t\tgoto err;\n"
+ "> +\t\t\t}\n"
+ "> +\t\t\tnum = 1;\n"
+ "> +\t\t\tbreak;\n"
+ "> +\t\tcase 's':\n"
+ "> +\t\t\twhile (num--) {\n"
+ "> +\t\t\t\tbstr = va_arg(ap, u8 *);\n"
+ "> +\t\t\t\tlen = va_arg(ap, size_t);\n"
+ "> +\t\t\t\tret = test_and_add_token_bytestring(cmd, bstr,\n"
+ "> +\t\t\t\t\t\t\t\t    len);\n"
+ "> +\t\t\t\tif (ret < 0)\n"
+ "> +\t\t\t\t\tgoto err;\n"
+ "> +\t\t\t}\n"
+ "> +\t\t\tnum = 1;\n"
+ "> +\t\t\tbreak;\n"
+ "> +\t\tcase ' ':\n"
+ "> +\t\tcase '\\t':\n"
+ "> +\t\t\t/* ignored */\n"
+ "> +\t\t\tbreak;\n"
+ "> +\t\tdefault:\n"
+ "> +\t\t\tpr_warn(\"Unrecognized type.\\n\");\n"
+ "> +\t\t}\n"
+ "> +\n"
+ "> +\t\tit++;\n"
+ "> +\t\tsum += ret;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tva_end(ap);\n"
+ "> +\n"
+ "> +\treturn sum;\n"
+ "> +\n"
+ "> + err:\n"
+ "> +\tpr_err(\"Token failed to be added.\\n\");\n"
+ "> +\treturn ret;\n"
+ "> +}\n"
+ "> +\n"
+ "> +static void set_comID(struct opal_cmd *cmd, u16 comID)\n"
+ "> +{\n"
+ "> +\tstruct opal_header *hdr = (struct opal_header *)cmd->cmd;\n"
+ "> +\n"
+ "> +\thdr->cp.extendedComID[0] = comID >> 8;\n"
+ "> +\thdr->cp.extendedComID[1] = comID;\n"
+ "> +\thdr->cp.extendedComID[2] = 0;\n"
+ "> +\thdr->cp.extendedComID[3] = 0;\n"
+ "> +}\n"
+ "> +\n"
+ "> +static int cmd_finalize(struct opal_cmd *cmd, u32 hsn, u32 tsn)\n"
+ "> +{\n"
+ "> +\tstruct opal_header *hdr;\n"
+ "> +\tint ret;\n"
+ "> +\n"
+ "> +\tret = test_and_add_token_va(cmd, \"6c\",\n"
+ "> +\t\t\t\t    OPAL_ENDOFDATA, OPAL_STARTLIST,\n"
+ "> +\t\t\t\t    0, 0, 0, OPAL_ENDLIST);\n"
+ "> +\n"
+ "> +\tif (ret < 0) {\n"
+ "> +\t\tpr_err(\"Error finalizing command.\\n\");\n"
+ "> +\t\treturn -EFAULT;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\thdr = (struct opal_header *) cmd->cmd;\n"
+ "> +\n"
+ "> +\thdr->pkt.TSN = cpu_to_be32(tsn);\n"
+ "> +\thdr->pkt.HSN = cpu_to_be32(hsn);\n"
+ "> +\n"
+ "> +\thdr->subpkt.length = cpu_to_be32(cmd->pos - sizeof(*hdr));\n"
+ "> +\twhile (cmd->pos % 4) {\n"
+ "> +\t\tif (cmd->pos >= IO_BUFFER_LENGTH) {\n"
+ "> +\t\t\tpr_err(\"Error: Buffer overrun\\n\");\n"
+ "> +\t\t\treturn -ERANGE;\n"
+ "> +\t\t}\n"
+ "> +\t\tcmd->cmd[cmd->pos++] = 0;\n"
+ "> +\t}\n"
+ "> +\thdr->pkt.length = cpu_to_be32(cmd->pos - sizeof(hdr->cp) -\n"
+ "> +\t\t\t\t      sizeof(hdr->pkt));\n"
+ "> +\thdr->cp.length = cpu_to_be32(cmd->pos - sizeof(hdr->cp));\n"
+ "> +\n"
+ "> +\treturn 0;\n"
+ "> +}\n"
+ "> +\n"
+ "> +static enum OPAL_RESPONSE_TOKEN token_type(const struct parsed_resp *resp,\n"
+ "> +\t\t\t\t\t   int n)\n"
+ "> +{\n"
+ "> +\tconst struct opal_resp_tok *tok;\n"
+ "> +\n"
+ "> +\tif (n >= resp->num) {\n"
+ "> +\t\tpr_err(\"Token number doesn't exist: %d, resp: %d\\n\",\n"
+ "> +\t\t       n, resp->num);\n"
+ "> +\t\treturn OPAL_DTA_TOKENID_INVALID;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\ttok = &resp->toks[n];\n"
+ "> +\tif (tok->len == 0) {\n"
+ "> +\t\tpr_err(\"Token length must be non-zero\\n\");\n"
+ "> +\t\treturn OPAL_DTA_TOKENID_INVALID;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\treturn tok->type;\n"
+ "> +}\n"
+ "> +\n"
+ "> +/*\n"
+ "> + * This function returns 0 in case of invalid token. One should call\n"
+ "> + * token_type() first to find out if the token is valid or not.\n"
+ "> + */\n"
+ "> +static enum OPAL_TOKEN response_get_token(const struct parsed_resp *resp,\n"
+ "> +\t\t\t\t\t  int n)\n"
+ "> +{\n"
+ "> +\tconst struct opal_resp_tok *tok;\n"
+ "> +\n"
+ "> +\tif (n >= resp->num) {\n"
+ "> +\t\tpr_err(\"Token number doesn't exist: %d, resp: %d\\n\",\n"
+ "> +\t\t       n, resp->num);\n"
+ "> +\t\treturn 0;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\ttok = &resp->toks[n];\n"
+ "> +\tif (tok->len == 0) {\n"
+ "> +\t\tpr_err(\"Token length must be non-zero\\n\");\n"
+ "> +\t\treturn 0;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\treturn tok->pos[0];\n"
+ "> +}\n"
+ "> +\n"
+ "> +static size_t response_parse_tiny(struct opal_resp_tok *tok,\n"
+ "> +\t\t\t\t  const u8 *pos)\n"
+ "> +{\n"
+ "> +\ttok->pos = pos;\n"
+ "> +\ttok->len = 1;\n"
+ "> +\ttok->width = OPAL_WIDTH_TINY;\n"
+ "> +\n"
+ "> +\tif (pos[0] & TINY_ATOM_SIGNED) {\n"
+ "> +\t\ttok->type = OPAL_DTA_TOKENID_SINT;\n"
+ "> +\t} else {\n"
+ "> +\t\ttok->type = OPAL_DTA_TOKENID_UINT;\n"
+ "> +\t\ttok->stored.u = pos[0] & 0x3f;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\treturn tok->len;\n"
+ "> +}\n"
+ "> +\n"
+ "> +static size_t response_parse_short(struct opal_resp_tok *tok,\n"
+ "> +\t\t\t\t   const u8 *pos)\n"
+ "> +{\n"
+ "> +\ttok->pos = pos;\n"
+ "> +\ttok->len = (pos[0] & SHORT_ATOM_LEN_MASK) + 1;\n"
+ "> +\ttok->width = OPAL_WIDTH_SHORT;\n"
+ "> +\n"
+ "> +\tif (pos[0] & SHORT_ATOM_BYTESTRING) {\n"
+ "> +\t\ttok->type = OPAL_DTA_TOKENID_BYTESTRING;\n"
+ "> +\t} else if (pos[0] & SHORT_ATOM_SIGNED) {\n"
+ "> +\t\ttok->type = OPAL_DTA_TOKENID_SINT;\n"
+ "> +\t} else {\n"
+ "> +\t\tu64 u_integer = 0;\n"
+ "> +\t\tint i, b = 0;\n"
+ "> +\n"
+ "> +\t\ttok->type = OPAL_DTA_TOKENID_UINT;\n"
+ "> +\t\tif (tok->len > 9)\n"
+ "Should this be len > 8 or len >= 9 ?\n"
+ "\n"
+ "> +\t\t\tpr_warn(\"uint64 with more than 8 bytes\\n\");\n"
+ "> +\t\tfor (i = tok->len - 1; i > 0; i--) {\n"
+ "> +\t\t\tu_integer |= ((u64)pos[i] << (8 * b));\n"
+ "> +\t\t\tb++;\n"
+ "> +\t\t}\n"
+ "It doesn't look particularly safe to keep using this driver on a drive\n"
+ "if it returns a len > 8. But the specs do allow 16-byte data in a short\n"
+ "atom, so maybe we should bail on allowing the driver to manage the\n"
+ "drive, or change the types to some 16-byte type?\n"
+ "\n"
+ "> +\t\ttok->stored.u = u_integer;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\treturn tok->len;\n"
+ "> +}\n"
+ "> +\n"
+ "> +static size_t response_parse_medium(struct opal_resp_tok *tok,\n"
+ "> +\t\t\t\t    const u8 *pos)\n"
+ "> +{\n"
+ "> +\ttok->pos = pos;\n"
+ "> +\ttok->len = (((pos[0] & MEDIUM_ATOM_LEN_MASK) << 8) | pos[1]) + 2;\n"
+ "> +\ttok->width = OPAL_WIDTH_MEDIUM;\n"
+ "> +\n"
+ "> +\tif (pos[0] & MEDIUM_ATOM_BYTESTRING)\n"
+ "> +\t\ttok->type = OPAL_DTA_TOKENID_BYTESTRING;\n"
+ "> +\telse if (pos[0] & MEDIUM_ATOM_SIGNED)\n"
+ "> +\t\ttok->type = OPAL_DTA_TOKENID_SINT;\n"
+ "> +\telse\n"
+ "> +\t\ttok->type = OPAL_DTA_TOKENID_UINT;\n"
+ "> +\n"
+ "> +\treturn tok->len;\n"
+ "> +}\n"
+ "> +\n"
+ "> +#define LONG_ATOM_ID (BIT(7) | BIT(6) | BIT(5))\n"
+ "> +#define LONG_ATOM_BYTESTRING BIT(1)\n"
+ "> +#define LONG_ATOM_SIGNED BIT(0)\n"
+ "> +static size_t response_parse_long(struct opal_resp_tok *tok,\n"
+ "> +\t\t\t\t  const u8 *pos)\n"
+ "> +{\n"
+ "> +\ttok->pos = pos;\n"
+ "> +\ttok->len = ((pos[1] << 16) | (pos[2] << 8) | pos[3]) + 4;\n"
+ "> +\ttok->width = OPAL_WIDTH_LONG;\n"
+ "> +\n"
+ "> +\tif (pos[0] & LONG_ATOM_BYTESTRING)\n"
+ "> +\t\ttok->type = OPAL_DTA_TOKENID_BYTESTRING;\n"
+ "> +\telse if (pos[0] & LONG_ATOM_SIGNED)\n"
+ "> +\t\ttok->type = OPAL_DTA_TOKENID_SINT;\n"
+ "> +\telse\n"
+ "> +\t\ttok->type = OPAL_DTA_TOKENID_UINT;\n"
+ "> +\n"
+ "> +\treturn tok->len;\n"
+ "> +}\n"
+ "> +\n"
+ "> +static size_t response_parse_token(struct opal_resp_tok *tok,\n"
+ "> +\t\t\t\t   const u8 *pos)\n"
+ "> +{\n"
+ "> +\ttok->pos = pos;\n"
+ "> +\ttok->len = 1;\n"
+ "> +\ttok->type = OPAL_DTA_TOKENID_TOKEN;\n"
+ "> +\ttok->width = OPAL_WIDTH_TOKEN;\n"
+ "> +\n"
+ "> +\treturn tok->len;\n"
+ "> +}\n"
+ "> +\n"
+ "> +static int response_parse(const u8 *buf, size_t length,\n"
+ "> +\t\t\t  struct parsed_resp *resp)\n"
+ "> +{\n"
+ "> +\tconst struct opal_header *hdr;\n"
+ "> +\tstruct opal_resp_tok *iter;\n"
+ "> +\tint ret, num_entries = 0;\n"
+ "> +\tu32 cpos = 0, total;\n"
+ "> +\tsize_t token_length;\n"
+ "> +\tconst u8 *pos;\n"
+ "> +\n"
+ "> +\tif (!buf)\n"
+ "> +\t\treturn -EFAULT;\n"
+ "> +\n"
+ "> +\tif (!resp)\n"
+ "> +\t\treturn -EFAULT;\n"
+ "> +\n"
+ "> +\thdr = (struct opal_header *)buf;\n"
+ "> +\tpos = buf;\n"
+ "> +\tpos += sizeof(*hdr);\n"
+ "> +\n"
+ "> +\tpr_debug(\"Response size: cp: %d, pkt: %d, subpkt: %d\\n\",\n"
+ "> +\t\t be32_to_cpu(hdr->cp.length),\n"
+ "> +\t\t be32_to_cpu(hdr->pkt.length),\n"
+ "> +\t\t be32_to_cpu(hdr->subpkt.length));\n"
+ "> +\n"
+ "> +\tif ((hdr->cp.length == 0)\n"
+ "> +\t    || (hdr->pkt.length == 0)\n"
+ "> +\t    || (hdr->subpkt.length == 0)) {\n"
+ "> +\t\tpr_err(\"Bad header length. cp: %d, pkt: %d, subpkt: %d\\n\",\n"
+ "> +\t\t       be32_to_cpu(hdr->cp.length),\n"
+ "> +\t\t       be32_to_cpu(hdr->pkt.length),\n"
+ "> +\t\t       be32_to_cpu(hdr->subpkt.length));\n"
+ "> +\t\tprint_buffer(pos, sizeof(*hdr));\n"
+ "> +\t\tret = -EINVAL;\n"
+ "> +\t\tgoto err;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tif (pos > buf + length) {\n"
+ "> +\t\tret = -EFAULT;\n"
+ "> +\t\tgoto err;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\titer = resp->toks;\n"
+ "> +\ttotal = be32_to_cpu(hdr->subpkt.length);\n"
+ "> +\tprint_buffer(pos, total);\n"
+ "> +\twhile (cpos < total) {\n"
+ "> +\t\tif (!(pos[0] & 0x80)) /* tiny atom */\n"
+ "> +\t\t\ttoken_length = response_parse_tiny(iter, pos);\n"
+ "> +\t\telse if (!(pos[0] & 0x40)) /* short atom */\n"
+ "> +\t\t\ttoken_length = response_parse_short(iter, pos);\n"
+ "> +\t\telse if (!(pos[0] & 0x20)) /* medium atom */\n"
+ "> +\t\t\ttoken_length = response_parse_medium(iter, pos);\n"
+ "> +\t\telse if (!(pos[0] & 0x10)) /* long atom */\n"
+ "> +\t\t\ttoken_length = response_parse_long(iter, pos);\n"
+ "> +\t\telse /* TOKEN */\n"
+ "> +\t\t\ttoken_length = response_parse_token(iter, pos);\n"
+ "> +\n"
+ "> +\t\tpos += token_length;\n"
+ "> +\t\tcpos += token_length;\n"
+ "> +\t\titer++;\n"
+ "> +\t\tnum_entries++;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tif (num_entries == 0) {\n"
+ "> +\t\tpr_err(\"Couldn't parse response.\\n\");\n"
+ "> +\t\tret = -EINVAL;\n"
+ "> +\t\tgoto err;\n"
+ "> +\t}\n"
+ "> +\tresp->num = num_entries;\n"
+ "> +\n"
+ "> +\treturn 0;\n"
+ "> +err:\n"
+ "> +\treturn ret;\n"
+ "> +}\n"
+ "> +\n"
+ "> +static size_t response_get_string(const struct parsed_resp *resp, int n,\n"
+ "> +\t\t\t\t  const char **store)\n"
+ "> +{\n"
+ "> +\t*store = NULL;\n"
+ "> +\tif (!resp) {\n"
+ "> +\t\tpr_err(\"Response is NULL\\n\");\n"
+ "> +\t\treturn 0;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tif (n > resp->num) {\n"
+ "> +\t\tpr_err(\"Response has %d tokens. Can't access %d\\n\",\n"
+ "> +\t\t       resp->num, n);\n"
+ "> +\t\treturn 0;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tif (resp->toks[n].type != OPAL_DTA_TOKENID_BYTESTRING) {\n"
+ "> +\t\tpr_err(\"Token is not a byte string!\\n\");\n"
+ "> +\t\treturn 0;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\t*store = resp->toks[n].pos + 1;\n"
+ "> +\treturn resp->toks[n].len - 1;\n"
+ "> +}\n"
+ "> +\n"
+ "> +static u64 response_get_u64(const struct parsed_resp *resp, int n)\n"
+ "> +{\n"
+ "> +\tif (!resp) {\n"
+ "> +\t\tpr_err(\"Response is NULL\\n\");\n"
+ "> +\t\treturn 0;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tif (n > resp->num) {\n"
+ "> +\t\tpr_err(\"Response has %d tokens. Can't access %d\\n\",\n"
+ "> +\t\t       resp->num, n);\n"
+ "> +\t\treturn 0;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tif (resp->toks[n].type != OPAL_DTA_TOKENID_UINT) {\n"
+ "> +\t\tpr_err(\"Token is not unsigned it: %d\\n\",\n"
+ "> +\t\t       resp->toks[n].type);\n"
+ "> +\t\treturn 0;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tif (!((resp->toks[n].width == OPAL_WIDTH_TINY) ||\n"
+ "> +\t      (resp->toks[n].width == OPAL_WIDTH_SHORT))) {\n"
+ "> +\t\tpr_err(\"Atom is not short or tiny: %d\\n\",\n"
+ "> +\t\t       resp->toks[n].width);\n"
+ "> +\t\treturn 0;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\treturn resp->toks[n].stored.u;\n"
+ "> +}\n"
+ "> +\n"
+ "> +static u8 response_status(const struct parsed_resp *resp)\n"
+ "> +{\n"
+ "> +\tif ((token_type(resp, 0) == OPAL_DTA_TOKENID_TOKEN)\n"
+ "> +\t    && (response_get_token(resp, 0) == OPAL_ENDOFSESSION)) {\n"
+ "> +\t\treturn 0;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tif (resp->num < 5)\n"
+ "> +\t\treturn DTAERROR_NO_METHOD_STATUS;\n"
+ "> +\n"
+ "> +\tif ((token_type(resp, resp->num - 1) != OPAL_DTA_TOKENID_TOKEN) ||\n"
+ "> +\t    (token_type(resp, resp->num - 5) != OPAL_DTA_TOKENID_TOKEN) ||\n"
+ "> +\t    (response_get_token(resp, resp->num - 1) != OPAL_ENDLIST) ||\n"
+ "> +\t    (response_get_token(resp, resp->num - 5) != OPAL_STARTLIST))\n"
+ "> +\t\treturn DTAERROR_NO_METHOD_STATUS;\n"
+ "> +\n"
+ "> +\treturn response_get_u64(resp, resp->num - 4);\n"
+ "> +}\n"
+ "> +\n"
+ "> +/* Parses and checks for errors */\n"
+ "> +static int parse_and_check_status(struct opal_dev *dev)\n"
+ "> +{\n"
+ "> +\tstruct opal_cmd *cmd;\n"
+ "> +\tint error;\n"
+ "> +\n"
+ "> +\tcmd = &dev->cmd;\n"
+ "> +\tprint_buffer(cmd->cmd, cmd->pos);\n"
+ "> +\n"
+ "> +\terror = response_parse(cmd->resp, IO_BUFFER_LENGTH, &dev->parsed);\n"
+ "> +\tif (error) {\n"
+ "> +\t\tpr_err(\"%s: Couldn't parse response.\\n\", dev->disk_name);\n"
+ "> +\t\tgoto err_return;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\terror = response_status(&dev->parsed);\n"
+ "> +\tif (error)\n"
+ "> +\t\tpr_err(\"%s: Response Status: %d\\n\", dev->disk_name,\n"
+ "> +\t\t       error);\n"
+ "> +\n"
+ "> + err_return:\n"
+ "> +\treturn error;\n"
+ "> +}\n"
+ "> +\n"
+ "> +static void clear_opal_cmd(struct opal_cmd *cmd)\n"
+ "> +{\n"
+ "> +\tcmd->pos = sizeof(struct opal_header);\n"
+ "> +\tmemset(cmd->cmd, 0, IO_BUFFER_LENGTH);\n"
+ "> +\tcmd->cb = NULL;\n"
+ "> +\tcmd->cb_data = NULL;\n"
+ "> +}\n"
+ "> +\n"
+ "> +static void start_opal_session_cont(int error, void *data)\n"
+ "> +{\n"
+ "> +\tstruct opal_dev *dev = data;\n"
+ "> +\tu32 HSN, TSN;\n"
+ "> +\n"
+ "> +\tif (error)\n"
+ "> +\t\tgoto err_return;\n"
+ "> +\n"
+ "> +\terror = parse_and_check_status(dev);\n"
+ "> +\tif (error)\n"
+ "> +\t\tgoto err_return;\n"
+ "> +\n"
+ "> +\tHSN = response_get_u64(&dev->parsed, 4);\n"
+ "> +\tTSN = response_get_u64(&dev->parsed, 5);\n"
+ "> +\n"
+ "> +\tif (HSN == 0 && TSN == 0) {\n"
+ "> +\t\tpr_err(\"%s: Couldn't authenticate session\\n\", dev->disk_name);\n"
+ "> +\t\terror = -EPERM;\n"
+ "> +\t\tgoto err_return;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tdev->HSN = HSN;\n"
+ "> +\tdev->TSN = TSN;\n"
+ "> +\n"
+ "> +err_return:\n"
+ "> +\tif (dev->oper_cb)\n"
+ "> +\t\tdev->oper_cb(error, dev);\n"
+ "> +}\n"
+ "> +\n"
+ "> +static int get_opal_key(struct opal_dev *dev)\n"
+ "> +{\n"
+ "> +\tstruct key *ukey = NULL;\n"
+ "> +\tconst u8 *tmpkey = NULL;\n"
+ "> +\tsize_t tmplen;\n"
+ "> +\tint ret = 0;\n"
+ "> +\n"
+ "> +\tif (dev->key_type == OPAL_KEY_PLAIN) {\n"
+ "> +\t\ttmpkey = dev->key_name;\n"
+ "> +\t\ttmplen = dev->key_name_len;\n"
+ "> +\t} else if (dev->key_type == OPAL_KEY_KEYRING) {\n"
+ "> +\t\tukey = request_user_key(dev->key_name, &tmpkey, &tmplen);\n"
+ "> +\t\tif (IS_ERR(ukey)) {\n"
+ "> +\t\t\tpr_err(\"%s: Can't retrieve key: %ld\\n\", dev->disk_name,\n"
+ "> +\t\t\t       PTR_ERR(ukey));\n"
+ "> +\t\t\treturn PTR_ERR(ukey);\n"
+ "> +\t\t}\n"
+ "> +\t} else {\n"
+ "> +\t\tpr_err(\"Requested invalid key type: %d\\n\", dev->key_type);\n"
+ "> +\t\treturn -EINVAL;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tif (tmplen > OPAL_KEY_MAX) {\n"
+ "> +\t\tpr_err(\"Requested key with invalid size: %zd\\n\", tmplen);\n"
+ "> +\t\tret = -EINVAL;\n"
+ "> +\t\tgoto err_exit;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tdev->key_len = tmplen;\n"
+ "> +\tif (!memcpy(dev->key, tmpkey, tmplen)) {\n"
+ "> +\t\tpr_err(\"Error when copying key\");\n"
+ "> +\t\tret = -EFAULT;\n"
+ "> +\t\tgoto err_exit;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +err_exit:\n"
+ "> +\tkey_put(ukey);\n"
+ "> +\n"
+ "> +\treturn 0;\n"
+ "> +}\n"
+ "> +\n"
+ "> +static void clean_opal_key(struct opal_dev *dev)\n"
+ "> +{\n"
+ "> +\tmemset(dev->key, 0, OPAL_KEY_MAX);\n"
+ "> +\tdev->key_len = 0;\n"
+ "> +}\n"
+ "> +\n"
+ "> +static inline void clean_function_data(struct opal_dev *dev)\n"
+ "> +{\n"
+ "> +\t\tdev->func_data = NULL;\n"
+ "> +\t\tdev->num_func_data = 0;\n"
+ "> +}\n"
+ "> +\n"
+ "> +/* This is a generic continue fn.\n"
+ "> + * We use this when we don't care about the response data\n"
+ "> + * and simply want to check the status and continue.\n"
+ "> + */\n"
+ "> +static void generic_cont(int error, void *data)\n"
+ "> +{\n"
+ "> +\tstruct opal_dev *dev = data;\n"
+ "> +\n"
+ "> +\tif (error)\n"
+ "> +\t\tgoto err_return;\n"
+ "> +\n"
+ "> +\terror = parse_and_check_status(dev);\n"
+ "> +\n"
+ "> + err_return:\n"
+ "> +\tif (dev->oper_cb)\n"
+ "> +\t\tdev->oper_cb(error, dev);\n"
+ "> +}\n"
+ "\n"
+ "How about:\n"
+ "\n"
+ "static void generic_cont(int error, void *data)\n"
+ "{\n"
+ "\tstruct opal_dev *dev = data;\n"
+ "\n"
+ "\tif (!error)\n"
+ "\t\terror = parse_and_check_status(dev);\n"
+ "\n"
+ "\tif (dev->oper_cb)\n"
+ "\t\tdev->oper_cb(error, dev);\n"
+ "}\n"
+ "\n"
+ "> +\n"
+ "> +static void end_session_cont(int error, void *data)\n"
+ "> +{\n"
+ "> +\tstruct opal_dev *dev = data;\n"
+ "> +\n"
+ "> +\tdev->HSN = 0;\n"
+ "> +\tdev->TSN = 0;\n"
+ "> +\tgeneric_cont(error, data);\n"
+ "> +}\n"
+ "> +\n"
+ "> +static int finalize_and_send(struct opal_dev *dev, struct opal_cmd *cmd,\n"
+ "> +\t\t\t     sec_cb cont)\n"
+ "> +{\n"
+ "> +\tint ret;\n"
+ "> +\n"
+ "> +\tret = cmd_finalize(cmd, dev->HSN, dev->TSN);\n"
+ "> +\tif (ret) {\n"
+ "> +\t\tpr_err(\"%s: Error finalizing command buffer: %d\\n\",\n"
+ "> +\t\t       dev->disk_name, ret);\n"
+ "> +\t\treturn ret;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tprint_buffer(cmd->cmd, cmd->pos);\n"
+ "> +\n"
+ "> +\tret = opal_send_recv(dev, cont, dev);\n"
+ "> +\tif (ret)\n"
+ "> +\t\tpr_err(\"%s: Error running command: %d\\n\",\n"
+ "> +\t\t       dev->disk_name, ret);\n"
+ "> +\n"
+ "> +\treturn ret;\n"
+ "> +}\n"
+ "> +\n"
+ "> +static int wait_for_cmd_completion(struct opal_completion *completion)\n"
+ "> +{\n"
+ "> +\twait_for_completion_interruptible(&completion->cmd_completion);\n"
+ "> +\treturn completion->completion_status;\n"
+ "> +}\n"
+ "> +\n"
+ "> +static int gen_key(struct opal_dev *dev)\n"
+ "> +{\n"
+ "> +\tconst u8 *method;\n"
+ "> +\tu8 uid[OPAL_UID_LENGTH];\n"
+ "> +\tstruct opal_cmd *cmd;\n"
+ "> +\tint ret;\n"
+ "> +\n"
+ "> +\tcmd = &dev->cmd;\n"
+ "> +\tclear_opal_cmd(cmd);\n"
+ "> +\tset_comID(cmd, dev->comID);\n"
+ "> +\n"
+ "> +\tmemcpy(uid, dev->prev_data, min(sizeof(uid), dev->prev_d_len));\n"
+ "> +\tmethod = OPALMETHOD[OPAL_GENKEY];\n"
+ "> +\tkfree(dev->prev_data);\n"
+ "> +\tdev->prev_data = NULL;\n"
+ "> +\n"
+ "> +\tret = test_and_add_token_va(cmd, \"c2s 2c\",\n"
+ "> +\t\t\t\t    OPAL_CALL,\n"
+ "> +\t\t\t\t    uid, OPAL_UID_LENGTH,\n"
+ "> +\t\t\t\t    method, OPAL_METHOD_LENGTH,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_STARTLIST,\n"
+ "> +\t\t\t\t    OPAL_ENDLIST);\n"
+ "> +\tif (ret < 0) {\n"
+ "> +\t\tpr_err(\"%s: Error building gen key command\\n\",\n"
+ "> +\t\t       dev->disk_name);\n"
+ "> +\t\treturn ret;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\treturn finalize_and_send(dev, cmd, generic_cont);\n"
+ "> +}\n"
+ "> +\n"
+ "> +static void get_active_key_cont(int error, void *data)\n"
+ "> +{\n"
+ "> +\tstruct opal_dev *dev = data;\n"
+ "> +\tconst char *activekey;\n"
+ "> +\tsize_t keylen;\n"
+ "> +\n"
+ "> +\tif (error)\n"
+ "> +\t\tgoto err_return;\n"
+ "> +\n"
+ "> +\terror = parse_and_check_status(dev);\n"
+ "> +\tif (error)\n"
+ "> +\t\tgoto err_return;\n"
+ "> +\tkeylen = response_get_string(&dev->parsed, 4, &activekey);\n"
+ "> +\tif (!activekey) {\n"
+ "> +\t\tpr_err(\"%s: Couldn't extract the Activekey from the response\\n\",\n"
+ "> +\t\t       __func__);\n"
+ "> +\t\terror = 0x0A;\n"
+ "> +\t\tgoto err_return;\n"
+ "> +\t}\n"
+ "> +\tdev->prev_data = kmemdup(activekey, keylen, GFP_KERNEL);\n"
+ "> +\n"
+ "> +\tif (!dev->prev_data)\n"
+ "> +\t\terror = -ENOMEM;\n"
+ "> +\n"
+ "> +\tdev->prev_d_len = keylen;\n"
+ "> +\n"
+ "> +err_return:\n"
+ "> +\tif (dev->oper_cb)\n"
+ "> +\t\tdev->oper_cb(error, dev);\n"
+ "> +}\n"
+ "> +\n"
+ "> +static int get_active_key(struct opal_dev *dev)\n"
+ "> +{\n"
+ "> +\tconst u8 *method;\n"
+ "> +\tu8 uid[OPAL_UID_LENGTH];\n"
+ "> +\tstruct opal_cmd *cmd;\n"
+ "> +\tint ret;\n"
+ "> +\n"
+ "> +\tcmd = &dev->cmd;\n"
+ "> +\tclear_opal_cmd(cmd);\n"
+ "> +\tset_comID(cmd, dev->comID);\n"
+ "> +\n"
+ "> +\tmethod = OPALMETHOD[OPAL_GET];\n"
+ "> +\n"
+ "> +\tret = build_locking_range(uid, sizeof(uid), dev->lr);\n"
+ "> +\tif (ret < 0) {\n"
+ "> +\t\tpr_err(\"%s: Can't build locking range\\n\", dev->disk_name);\n"
+ "> +\t\treturn -EINVAL;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tret = test_and_add_token_va(cmd, \"c2s 6c 4c 2c\",\n"
+ "> +\t\t\t\t    OPAL_CALL,\n"
+ "> +\t\t\t\t    uid, OPAL_UID_LENGTH,\n"
+ "> +\t\t\t\t    method, OPAL_METHOD_LENGTH,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_STARTLIST,\n"
+ "> +\t\t\t\t    OPAL_STARTLIST,\n"
+ "> +\t\t\t\t    OPAL_STARTNAME,\n"
+ "> +\t\t\t\t    OPAL_TINY_UINT_03, /* startCloumn */\n"
+ "> +\t\t\t\t    OPAL_TINY_UINT_10, /* ActiveKey */\n"
+ "> +\t\t\t\t    OPAL_ENDNAME,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_STARTNAME,\n"
+ "> +\t\t\t\t    OPAL_TINY_UINT_04, /* endColumn */\n"
+ "> +\t\t\t\t    OPAL_TINY_UINT_10, /* ActiveKey */\n"
+ "> +\t\t\t\t    OPAL_ENDNAME,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_ENDLIST,\n"
+ "> +\t\t\t\t    OPAL_ENDLIST);\n"
+ "> +\tif (ret < 0) {\n"
+ "> +\t\tpr_err(\"%s: Error building get active key command\\n\",\n"
+ "> +\t\t       dev->disk_name);\n"
+ "> +\t\treturn ret;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\treturn finalize_and_send(dev, cmd, get_active_key_cont);\n"
+ "> +}\n"
+ "> +\n"
+ "> +static int setup_locking_range(struct opal_dev *dev)\n"
+ "> +{\n"
+ "> +\tconst u8 *method;\n"
+ "> +\tu8 uid[OPAL_UID_LENGTH];\n"
+ "> +\tstruct opal_cmd *cmd;\n"
+ "> +\tstruct opal_user_lr_setup *setup;\n"
+ "> +\tint ret;\n"
+ "> +\n"
+ "> +\tcmd = &dev->cmd;\n"
+ "> +\tclear_opal_cmd(cmd);\n"
+ "> +\tset_comID(cmd, dev->comID);\n"
+ "> +\n"
+ "> +\tmethod = OPALMETHOD[OPAL_SET];\n"
+ "> +\tret = build_locking_range(uid, sizeof(uid), dev->lr);\n"
+ "> +\tif (ret < 0) {\n"
+ "> +\t\tpr_err(\"%s: Can't build locking range\\n\", dev->disk_name);\n"
+ "> +\t\treturn -EINVAL;\n"
+ "> +\t}\n"
+ "> +\tsetup = dev->func_data[dev->state - 1];\n"
+ "> +\n"
+ "> +\tret = test_and_add_token_va(cmd, \"c2s  4c 2cuc 2cuc 2cuc 2cu 4c\",\n"
+ "> +\t\t\t\t    OPAL_CALL,\n"
+ "> +\t\t\t\t    uid, OPAL_UID_LENGTH,\n"
+ "> +\t\t\t\t    method, OPAL_METHOD_LENGTH,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_STARTLIST,\n"
+ "> +\t\t\t\t    OPAL_STARTNAME,\n"
+ "> +\t\t\t\t    OPAL_VALUES,\n"
+ "> +\t\t\t\t    OPAL_STARTLIST,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_STARTNAME,\n"
+ "> +\t\t\t\t    OPAL_TINY_UINT_03, /* Range Start */\n"
+ "> +\t\t\t\t    setup->range_start,\n"
+ "> +\t\t\t\t    OPAL_ENDNAME,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_STARTNAME,\n"
+ "> +\t\t\t\t    OPAL_TINY_UINT_04, /* Range Length */\n"
+ "> +\t\t\t\t    setup->range_length,\n"
+ "> +\t\t\t\t    OPAL_ENDNAME,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_STARTNAME,\n"
+ "> +\t\t\t\t    OPAL_TINY_UINT_05, /* ReadLockEnabled */\n"
+ "> +\t\t\t\t    !!setup->RLE,\n"
+ "> +\t\t\t\t    OPAL_ENDNAME,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_STARTNAME,\n"
+ "> +\t\t\t\t    OPAL_TINY_UINT_06, /* WriteLockEnabled */\n"
+ "> +\t\t\t\t    !!setup->WLE,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_ENDNAME,\n"
+ "> +\t\t\t\t    OPAL_ENDLIST,\n"
+ "> +\t\t\t\t    OPAL_ENDNAME,\n"
+ "> +\t\t\t\t    OPAL_ENDLIST);\n"
+ "> +\tif (ret < 0) {\n"
+ "> +\t\tpr_err(\"%s: Error building Setup Locking range command.\\n\",\n"
+ "> +\t\t       dev->disk_name);\n"
+ "> +\t\treturn ret;\n"
+ "> +\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\treturn finalize_and_send(dev, cmd, generic_cont);\n"
+ "> +}\n"
+ "> +\n"
+ "> +static int start_adminsp_opal_session(struct opal_dev *dev,\n"
+ "> +\t\t\t\t      enum OPAL_UID auth,\n"
+ "> +\t\t\t\t      const char *key,\n"
+ "> +\t\t\t\t      u8 key_len)\n"
+ "> +{\n"
+ "> +\tconst u8 *method, *smuid, *admin_sp, *hsa;\n"
+ "> +\tstruct opal_cmd *cmd;\n"
+ "> +\tu32 HSN;\n"
+ "> +\tint ret;\n"
+ "> +\n"
+ "> +\tif (key == NULL && auth != OPAL_ANYBODY_UID) {\n"
+ "> +\t\tpr_err(\"%s: Attempted to open ADMIN_SP Session without a Host\" \\\n"
+ "> +\t\t       \"Challenge, and not as the Anybody UID\\n\", __func__);\n"
+ "> +\t\treturn 1;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tcmd = &dev->cmd;\n"
+ "> +\tclear_opal_cmd(cmd);\n"
+ "> +\n"
+ "> +\tset_comID(cmd, dev->comID);\n"
+ "> +\tHSN = 0x41;\n"
+ "> +\n"
+ "> +\tsmuid = OPALUID[OPAL_SMUID_UID];\n"
+ "> +\tmethod = OPALMETHOD[OPAL_STARTSESSION];\n"
+ "> +\tadmin_sp = OPALUID[OPAL_ADMINSP_UID];\n"
+ "> +\n"
+ "> +\tret = test_and_add_token_va(cmd, \"c2s cusc\",\n"
+ "> +\t\t\t\t    OPAL_CALL,\n"
+ "> +\t\t\t\t    smuid, OPAL_UID_LENGTH,\n"
+ "> +\t\t\t\t    method, OPAL_METHOD_LENGTH,\n"
+ "> +\t\t\t\t    OPAL_STARTLIST,\n"
+ "> +\t\t\t\t    HSN,\n"
+ "> +\t\t\t\t    admin_sp, OPAL_UID_LENGTH,\n"
+ "> +\t\t\t\t    OPAL_TINY_UINT_01);\n"
+ "> +\tif (ret < 0) {\n"
+ "> +\t\tpr_err(\"%s: Error building start adminsp session command.\\n\",\n"
+ "> +\t\t       dev->disk_name);\n"
+ "> +\t\treturn ret;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tswitch (auth) {\n"
+ "> +\tcase OPAL_ANYBODY_UID:\n"
+ "> +\t\t/* nothing left to do for anybody, just end and finalize */\n"
+ "> +\t\tret = test_and_add_token_va(cmd, \"c\",\n"
+ "> +\t\t\t\t\t    OPAL_ENDLIST);\n"
+ "> +\t\tbreak;\n"
+ "> +\tcase OPAL_SID_UID:\n"
+ "> +\t\thsa = OPALUID[OPAL_SID_UID];\n"
+ "> +\t\tret = test_and_add_token_va(cmd, \"2c s 3c s 2c\",\n"
+ "> +\t\t\t\t\t    OPAL_STARTNAME,\n"
+ "> +\t\t\t\t\t    OPAL_TINY_UINT_00, /* HostChallenge */\n"
+ "> +\t\t\t\t\t    key, key_len,\n"
+ "> +\t\t\t\t\t    OPAL_ENDNAME,\n"
+ "> +\t\t\t\t\t    OPAL_STARTNAME,\n"
+ "> +\t\t\t\t\t    OPAL_TINY_UINT_03, /* HostSignAuth */\n"
+ "> +\t\t\t\t\t    hsa, OPAL_UID_LENGTH,\n"
+ "> +\t\t\t\t\t    OPAL_ENDNAME,\n"
+ "> +\t\t\t\t\t    OPAL_ENDLIST);\n"
+ "> +\t\tbreak;\n"
+ "> +\tdefault:\n"
+ "> +\t\tpr_err(\"Cannot start Admin SP session with auth %d\\n\", auth);\n"
+ "> +\t\treturn 1;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tif (ret < 0) {\n"
+ "> +\t\tpr_err(\"%s: Error building start adminsp session command.\\n\",\n"
+ "> +\t\t       dev->disk_name);\n"
+ "> +\t\treturn ret;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\treturn finalize_and_send(dev, cmd, start_opal_session_cont);\n"
+ "> +}\n"
+ "> +\n"
+ "> +static int start_anybodyASP_opal_session(struct opal_dev *dev)\n"
+ "> +{\n"
+ "> +\treturn start_adminsp_opal_session(dev, OPAL_ANYBODY_UID, NULL, 0);\n"
+ "> +}\n"
+ "> +\n"
+ "> +static int start_SIDASP_opal_session(struct opal_dev *dev)\n"
+ "> +{\n"
+ "> +\tint ret;\n"
+ "> +\tconst u8 *key = dev->prev_data;\n"
+ "> +\n"
+ "> +\tif (!key)\n"
+ "> +\t\tret = start_adminsp_opal_session(dev, OPAL_SID_UID, dev->key,\n"
+ "> +\t\t\t\t\t\t dev->key_len);\n"
+ "> +\telse {\n"
+ "> +\t\tret = start_adminsp_opal_session(dev, OPAL_SID_UID, key,\n"
+ "> +\t\t\t\t\t\t dev->prev_d_len);\n"
+ "> +\t\tkfree(key);\n"
+ "> +\t\tdev->prev_data = NULL;\n"
+ "> +\t}\n"
+ "> +\treturn ret;\n"
+ "> +}\n"
+ "> +\n"
+ "> +static int start_lockingsp_opal_session(struct opal_dev *dev,\n"
+ "> +\t\t\t\t\tenum OPAL_UID auth, const u8 *key,\n"
+ "> +\t\t\t\t\tu8 key_len)\n"
+ "> +{\n"
+ "> +\n"
+ "> +\tconst u8 *method, *smuid, *locking_sp, *hsa;\n"
+ "> +\tstruct opal_cmd *cmd;\n"
+ "> +\tsize_t klen = key_len;\n"
+ "> +\tu32 HSN;\n"
+ "> +\tint ret;\n"
+ "> +\n"
+ "> +\tif (key == NULL) {\n"
+ "> +\t\tpr_err(\"Cannot start Locking SP session without a key\\n\");\n"
+ "> +\t\treturn -EINVAL;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tcmd = &dev->cmd;\n"
+ "> +\tclear_opal_cmd(cmd);\n"
+ "> +\n"
+ "> +\tset_comID(cmd, dev->comID);\n"
+ "> +\tHSN = 0x41;\n"
+ "> +\n"
+ "> +\tsmuid = OPALUID[OPAL_SMUID_UID];\n"
+ "> +\tmethod = OPALMETHOD[OPAL_STARTSESSION];\n"
+ "> +\tlocking_sp = OPALUID[OPAL_LOCKINGSP_UID];\n"
+ "> +\thsa = OPALUID[auth];\n"
+ "> +\n"
+ "> +\tret = test_and_add_token_va(cmd, \"c2s cusc 2csc 2csc c\",\n"
+ "> +\t\t\t\t    OPAL_CALL,\n"
+ "> +\t\t\t\t    smuid, OPAL_UID_LENGTH,\n"
+ "> +\t\t\t\t    method, OPAL_METHOD_LENGTH,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_STARTLIST,\n"
+ "> +\t\t\t\t    HSN,\n"
+ "> +\t\t\t\t    locking_sp, OPAL_UID_LENGTH,\n"
+ "> +\t\t\t\t    OPAL_TINY_UINT_01,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_STARTNAME,\n"
+ "> +\t\t\t\t    OPAL_TINY_UINT_00, /* HostChallenge */\n"
+ "> +\t\t\t\t    key, klen,\n"
+ "> +\t\t\t\t    OPAL_ENDNAME,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_STARTNAME,\n"
+ "> +\t\t\t\t    OPAL_TINY_UINT_03, /* Host Sign Authority */\n"
+ "> +\t\t\t\t    hsa, OPAL_UID_LENGTH,\n"
+ "> +\t\t\t\t    OPAL_ENDNAME,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_ENDLIST);\n"
+ "> +\n"
+ "> +\tif (ret < 0) {\n"
+ "> +\t\tpr_err(\"%s: Error building start adminsp session command.\\n\",\n"
+ "> +\t\t       dev->disk_name);\n"
+ "> +\t\treturn ret;\n"
+ "> +\t}\n"
+ "> +\treturn finalize_and_send(dev, cmd, start_opal_session_cont);\n"
+ "> +}\n"
+ "> +\n"
+ "> +static inline int start_admin1LSP_opal_session(struct opal_dev *dev)\n"
+ "> +{\n"
+ "> +\treturn start_lockingsp_opal_session(dev, OPAL_ADMIN1_UID,\n"
+ "> +\t\t\t\t\t    dev->key, dev->key_len);\n"
+ "> +}\n"
+ "> +\n"
+ "> +static int start_auth_opal_session(struct opal_dev *dev)\n"
+ "> +{\n"
+ "> +\tconst u8 *method, *smuid, *locking_sp;\n"
+ "> +\tu8 lk_ul_user[OPAL_UID_LENGTH];\n"
+ "> +\tstruct opal_cmd *cmd;\n"
+ "> +\tu32 HSN;\n"
+ "> +\tint ret;\n"
+ "> +\tstruct opal_user_info *uinfo;\n"
+ "> +\n"
+ "> +\tcmd = &dev->cmd;\n"
+ "> +\tclear_opal_cmd(cmd);\n"
+ "> +\n"
+ "> +\tset_comID(cmd, dev->comID);\n"
+ "> +\n"
+ "> +\tHSN = 0x41;\n"
+ "Can we #define this; it's used a few other places and is magicky\n"
+ "\n"
+ "> +\n"
+ "> +\tuinfo = dev->func_data[dev->state - 1];\n"
+ "> +\n"
+ "> +\tsmuid = OPALUID[OPAL_SMUID_UID];\n"
+ "> +\tmethod = OPALMETHOD[OPAL_STARTSESSION];\n"
+ "> +\tlocking_sp = OPALUID[OPAL_LOCKINGSP_UID];\n"
+ "> +\n"
+ "> +\tif (uinfo->SUM) {\n"
+ "> +\t\tret = build_locking_user(lk_ul_user, sizeof(lk_ul_user),\n"
+ "> +\t\t\t\t\t dev->lr);\n"
+ "> +\t\tif (ret < 0) {\n"
+ "> +\t\t\tpr_err(\"%s: Can't build locking user\\n\",\n"
+ "> +\t\t\t       dev->disk_name);\n"
+ "> +\t\t\treturn ret;\n"
+ "> +\t\t}\n"
+ "> +\t} else if (uinfo->who != OPAL_ADMIN1 && !uinfo->SUM) {\n"
+ "> +\t\tret = build_locking_user(lk_ul_user, sizeof(lk_ul_user),\n"
+ "> +\t\t\t\t\t uinfo->who - 1);\n"
+ "> +\t\tif (ret < 0) {\n"
+ "> +\t\t\tpr_err(\"%s: Can't build locking user\\n\",\n"
+ "> +\t\t\t       dev->disk_name);\n"
+ "> +\t\t\treturn ret;\n"
+ "> +\t\t}\n"
+ "> +\t} else\n"
+ "> +\t\tmemcpy(lk_ul_user, OPALUID[OPAL_ADMIN1_UID], OPAL_UID_LENGTH);\n"
+ "> +\n"
+ "> +\n"
+ "> +\tret = test_and_add_token_va(cmd, \"c2s cus3cs3c s 2c\",\n"
+ "> +\t\t\t\t    OPAL_CALL,\n"
+ "> +\t\t\t\t    smuid, OPAL_UID_LENGTH,\n"
+ "> +\t\t\t\t    method, OPAL_METHOD_LENGTH,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_STARTLIST,\n"
+ "> +\t\t\t\t    HSN,\n"
+ "> +\t\t\t\t    locking_sp, OPAL_UID_LENGTH,\n"
+ "> +\t\t\t\t    OPAL_TINY_UINT_01,\n"
+ "> +\t\t\t\t    OPAL_STARTNAME,\n"
+ "> +\t\t\t\t    OPAL_TINY_UINT_00,\n"
+ "> +\t\t\t\t    dev->key, dev->key_len,\n"
+ "> +\t\t\t\t    OPAL_ENDNAME,\n"
+ "> +\t\t\t\t    OPAL_STARTNAME,\n"
+ "> +\t\t\t\t    OPAL_TINY_UINT_03,\n"
+ "> +\n"
+ "> +\t\t\t\t    lk_ul_user, OPAL_UID_LENGTH,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_ENDNAME,\n"
+ "> +\t\t\t\t    OPAL_ENDLIST);\n"
+ "> +\n"
+ "> +\tif (ret < 0) {\n"
+ "> +\t\tpr_err(\"%s: Error building STARTSESSION command.\\n\",\n"
+ "> +\t\t       dev->disk_name);\n"
+ "> +\t\treturn ret;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\treturn finalize_and_send(dev, cmd, start_opal_session_cont);\n"
+ "> +}\n"
+ "> +\n"
+ "> +static int revert_tper(struct opal_dev *dev)\n"
+ "> +{\n"
+ "> +\tconst u8 *method, *smuid;\n"
+ "> +\tstruct opal_cmd *cmd;\n"
+ "> +\tint ret;\n"
+ "> +\n"
+ "> +\tcmd = &dev->cmd;\n"
+ "> +\tclear_opal_cmd(cmd);\n"
+ "> +\n"
+ "> +\tset_comID(cmd, dev->comID);\n"
+ "> +\n"
+ "> +\tsmuid = OPALUID[OPAL_ADMINSP_UID];\n"
+ "> +\tmethod = OPALMETHOD[OPAL_REVERT];\n"
+ "> +\n"
+ "> +\tret = test_and_add_token_va(cmd, \"c2s 2c\",\n"
+ "> +\t\t\t\t    OPAL_CALL,\n"
+ "> +\t\t\t\t    smuid, OPAL_UID_LENGTH,\n"
+ "> +\t\t\t\t    method, OPAL_METHOD_LENGTH,\n"
+ "> +\t\t\t\t    OPAL_STARTLIST,\n"
+ "> +\t\t\t\t    OPAL_ENDLIST);\n"
+ "> +\tif (ret < 0) {\n"
+ "> +\t\tpr_err(\"%s: Error building REVERT TPER command.\\n\",\n"
+ "> +\t\t       dev->disk_name);\n"
+ "> +\t\treturn ret;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\treturn finalize_and_send(dev, cmd, generic_cont);\n"
+ "> +}\n"
+ "> +\n"
+ "> +static int internal_activate_user(struct opal_dev *dev)\n"
+ "> +{\n"
+ "> +\tconst u8 *method;\n"
+ "> +\tu8 uid[OPAL_UID_LENGTH];\n"
+ "> +\tstruct opal_cmd *cmd;\n"
+ "> +\tint ret;\n"
+ "> +\tstruct opal_activate_user *act;\n"
+ "> +\n"
+ "> +\tcmd = &dev->cmd;\n"
+ "> +\tclear_opal_cmd(cmd);\n"
+ "> +\tset_comID(cmd, dev->comID);\n"
+ "> +\n"
+ "> +\tact = dev->func_data[dev->state - 1];\n"
+ "> +\n"
+ "> +\tmemcpy(uid, OPALUID[OPAL_USER1_UID], OPAL_UID_LENGTH);\n"
+ "> +\tuid[7] = act->who.who;\n"
+ "> +\n"
+ "> +\tmethod = OPALMETHOD[OPAL_SET];\n"
+ "> +\n"
+ "> +\tret = test_and_add_token_va(cmd, \"c2s 3c c 4c 3c\",\n"
+ "> +\t\t\t\t    OPAL_CALL,\n"
+ "> +\t\t\t\t    uid, OPAL_UID_LENGTH,\n"
+ "> +\t\t\t\t    method, OPAL_METHOD_LENGTH,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_STARTLIST,\n"
+ "> +\t\t\t\t    OPAL_STARTNAME,\n"
+ "> +\t\t\t\t    OPAL_TINY_UINT_01, /* Values */\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_STARTLIST,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_STARTNAME,\n"
+ "> +\t\t\t\t    OPAL_TINY_UINT_05, /* Enabled */\n"
+ "> +\t\t\t\t    OPAL_TINY_UINT_01, /* True */\n"
+ "> +\t\t\t\t    OPAL_ENDNAME,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_ENDLIST,\n"
+ "> +\t\t\t\t    OPAL_ENDNAME,\n"
+ "> +\t\t\t\t    OPAL_ENDLIST);\n"
+ "> +\n"
+ "> +\tif (ret < 0) {\n"
+ "> +\t\tpr_err(\"%s: Error building Activate UserN command.\\n\",\n"
+ "> +\t\t       dev->disk_name);\n"
+ "> +\t\treturn ret;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\treturn finalize_and_send(dev, cmd, generic_cont);\n"
+ "> +}\n"
+ "> +\n"
+ "> +static int erase_locking_range(struct opal_dev *dev)\n"
+ "> +{\n"
+ "> +\tconst u8 *method;\n"
+ "> +\tu8 uid[OPAL_UID_LENGTH];\n"
+ "> +\tstruct opal_cmd *cmd;\n"
+ "> +\tint ret;\n"
+ "> +\n"
+ "> +\tcmd = &dev->cmd;\n"
+ "> +\tclear_opal_cmd(cmd);\n"
+ "> +\tset_comID(cmd, dev->comID);\n"
+ "> +\n"
+ "> +\tmethod = OPALMETHOD[OPAL_ERASE];\n"
+ "> +\n"
+ "> +\tif (build_locking_range(uid, sizeof(uid), dev->lr) < 0) {\n"
+ "> +\t\tpr_err(\"%s: Can't build locking range\\n\", dev->disk_name);\n"
+ "> +\t\treturn -EINVAL;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tret = test_and_add_token_va(cmd, \"c2s 2c\",\n"
+ "> +\t\t\t\t    OPAL_CALL,\n"
+ "> +\t\t\t\t    uid, OPAL_UID_LENGTH,\n"
+ "> +\t\t\t\t    method, OPAL_METHOD_LENGTH,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_STARTLIST,\n"
+ "> +\t\t\t\t    OPAL_ENDLIST);\n"
+ "> +\n"
+ "> +\tif (ret < 0) {\n"
+ "> +\t\tpr_err(\"%s: Error building Erase Locking Range Cmmand.\\n\",\n"
+ "> +\t\t       dev->disk_name);\n"
+ "> +\t\treturn ret;\n"
+ "> +\t}\n"
+ "> +\treturn finalize_and_send(dev, cmd, generic_cont);\n"
+ "> +}\n"
+ "> +\n"
+ "> +static int set_mbr_done(struct opal_dev *dev)\n"
+ "> +{\n"
+ "> +\tconst u8 *method, *uid;\n"
+ "> +\tstruct opal_cmd *cmd;\n"
+ "> +\tint ret;\n"
+ "> +\n"
+ "> +\tu8 mbr_done_tf = *(u8 *)dev->func_data[dev->state - 1];\n"
+ "> +\n"
+ "> +\tcmd = &dev->cmd;\n"
+ "> +\tclear_opal_cmd(cmd);\n"
+ "> +\tset_comID(cmd, dev->comID);\n"
+ "> +\n"
+ "> +\tmethod = OPALMETHOD[OPAL_SET];\n"
+ "> +\tuid = OPALUID[OPAL_MBRCONTROL];\n"
+ "> +\n"
+ "> +\tret = test_and_add_token_va(cmd, \"c2s 3c 6c 2c\",\n"
+ "> +\t\t\t\t    OPAL_CALL,\n"
+ "> +\t\t\t\t    uid, OPAL_UID_LENGTH,\n"
+ "> +\t\t\t\t    method, OPAL_METHOD_LENGTH,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_STARTLIST,\n"
+ "> +\t\t\t\t    OPAL_STARTNAME,\n"
+ "> +\t\t\t\t    OPAL_VALUES,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_STARTLIST,\n"
+ "> +\t\t\t\t    OPAL_STARTNAME,\n"
+ "> +\t\t\t\t    OPAL_TINY_UINT_02, /* Done */\n"
+ "> +\t\t\t\t    mbr_done_tf,       /* Done T or F */\n"
+ "> +\t\t\t\t    OPAL_ENDNAME,\n"
+ "> +\t\t\t\t    OPAL_ENDLIST,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_ENDNAME,\n"
+ "> +\t\t\t\t    OPAL_ENDLIST);\n"
+ "> +\tif (ret < 0) {\n"
+ "> +\t\tpr_err(\"%s: Error Building set MBR Dont/Not done command\\n\",\n"
+ "s/Dont/Done/ ?\n"
+ "\n"
+ "\n"
+ "> +\t\t       dev->disk_name);\n"
+ "> +\t\treturn ret;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\treturn finalize_and_send(dev, cmd, generic_cont);\n"
+ "> +}\n"
+ "> +\n"
+ "> +static int set_mbr_enable_disable(struct opal_dev *dev)\n"
+ "> +{\n"
+ "> +\tconst u8 *method, *uid;\n"
+ "> +\tstruct opal_cmd *cmd;\n"
+ "> +\tint ret;\n"
+ "> +\n"
+ "> +\tu8 mbr_en_dis = *(u8 *)dev->func_data[dev->state - 1];\n"
+ "> +\n"
+ "> +\tcmd = &dev->cmd;\n"
+ "> +\tclear_opal_cmd(cmd);\n"
+ "> +\tset_comID(cmd, dev->comID);\n"
+ "> +\n"
+ "> +\tmethod = OPALMETHOD[OPAL_SET];\n"
+ "> +\tuid = OPALUID[OPAL_MBRCONTROL];\n"
+ "> +\n"
+ "> +\tret = test_and_add_token_va(cmd, \"c2s 3c 6c 2c\",\n"
+ "> +\t\t\t\t    OPAL_CALL,\n"
+ "> +\t\t\t\t    uid, OPAL_UID_LENGTH,\n"
+ "> +\t\t\t\t    method, OPAL_METHOD_LENGTH,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_STARTLIST,\n"
+ "> +\t\t\t\t    OPAL_STARTNAME,\n"
+ "> +\t\t\t\t    OPAL_VALUES,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_STARTLIST,\n"
+ "> +\t\t\t\t    OPAL_STARTNAME,\n"
+ "> +\t\t\t\t    OPAL_TINY_UINT_01, /* Enable */\n"
+ "> +\t\t\t\t    mbr_en_dis,        /* Enable or Disable */\n"
+ "> +\t\t\t\t    OPAL_ENDNAME,\n"
+ "> +\t\t\t\t    OPAL_ENDLIST,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_ENDNAME,\n"
+ "> +\t\t\t\t    OPAL_ENDLIST);\n"
+ "> +\tif (ret < 0) {\n"
+ "> +\t\tpr_err(\"%s: Error Building set MBR Dont/Not done command\\n\",\n"
+ "s/Dont/Done/ ?\n"
+ "\n"
+ "\n"
+ "> +\t\t       dev->disk_name);\n"
+ "> +\t\treturn ret;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\treturn finalize_and_send(dev, cmd, generic_cont);\n"
+ "> +}\n"
+ "> +\n"
+ "> +static int set_new_pw(struct opal_dev *dev)\n"
+ "> +{\n"
+ "> +\tconst u8 *method;\n"
+ "> +\tu8 cpin_uid[OPAL_UID_LENGTH];\n"
+ "> +\tstruct opal_cmd *cmd;\n"
+ "> +\tint ret;\n"
+ "> +\tstruct opal_new_pw *pw;\n"
+ "> +\tsize_t key_len;\n"
+ "> +\tu8 *key;\n"
+ "> +\n"
+ "> +\tcmd = &dev->cmd;\n"
+ "> +\tclear_opal_cmd(cmd);\n"
+ "> +\tset_comID(cmd, dev->comID);\n"
+ "> +\n"
+ "> +\tpw = dev->func_data[dev->state - 1];\n"
+ "> +\tkey = pw->new_pin.key;\n"
+ "> +\tkey_len = pw->new_pin.key_len;\n"
+ "> +\tmemcpy(cpin_uid, OPALUID[OPAL_C_PIN_ADMIN1], OPAL_UID_LENGTH);\n"
+ "> +\n"
+ "> +\tif (pw->user_for_pw != OPAL_ADMIN1) {\n"
+ "> +\t\tcpin_uid[5] = 0x03;\n"
+ "> +\t\tif (pw->who.SUM)\n"
+ "> +\t\t\tcpin_uid[7] = pw->new_pin.lr + 1;\n"
+ "> +\t\telse\n"
+ "> +\t\t\tcpin_uid[7] = pw->user_for_pw;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tmethod = OPALMETHOD[OPAL_SET];\n"
+ "> +\n"
+ "> +\tret = test_and_add_token_va(cmd, \"c2s 3c 3cs2c 2c\",\n"
+ "> +\t\t\t\t    OPAL_CALL,\n"
+ "> +\t\t\t\t    cpin_uid, OPAL_UID_LENGTH,\n"
+ "> +\t\t\t\t    method, OPAL_METHOD_LENGTH,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_STARTLIST,\n"
+ "> +\t\t\t\t    OPAL_STARTNAME,\n"
+ "> +\t\t\t\t    OPAL_TINY_UINT_01, /* Values */\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_STARTLIST,\n"
+ "> +\t\t\t\t    OPAL_STARTNAME,\n"
+ "> +\t\t\t\t    OPAL_TINY_UINT_03, /* PIN */\n"
+ "> +\t\t\t\t    key, key_len,\n"
+ "> +\t\t\t\t    OPAL_ENDNAME,\n"
+ "> +\t\t\t\t    OPAL_ENDLIST,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_ENDNAME,\n"
+ "> +\t\t\t\t    OPAL_ENDLIST);\n"
+ "> +\n"
+ "> +\tif (ret < 0) {\n"
+ "> +\t\tpr_err(\"%s: Error building SET AMIN1 PIN command.\\n\",\n"
+ "> +\t\t       dev->disk_name);\n"
+ "> +\t\treturn ret;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\treturn finalize_and_send(dev, cmd, generic_cont);\n"
+ "> +}\n"
+ "> +\n"
+ "> +static int set_sid_cpin_pin(struct opal_dev *dev)\n"
+ "> +{\n"
+ "> +\tconst u8 *method, *cpin_uid;\n"
+ "> +\tstruct opal_cmd *cmd;\n"
+ "> +\tint ret;\n"
+ "> +\n"
+ "> +\tcmd = &dev->cmd;\n"
+ "> +\tclear_opal_cmd(cmd);\n"
+ "> +\tset_comID(cmd, dev->comID);\n"
+ "> +\n"
+ "> +\tcpin_uid = OPALUID[OPAL_C_PIN_SID];\n"
+ "> +\tmethod = OPALMETHOD[OPAL_SET];\n"
+ "> +\n"
+ "> +\tret = test_and_add_token_va(cmd, \"c2s 2c 4cs2c 2c\",\n"
+ "> +\t\t\t\t    OPAL_CALL,\n"
+ "> +\t\t\t\t    cpin_uid, OPAL_UID_LENGTH,\n"
+ "> +\t\t\t\t    method, OPAL_METHOD_LENGTH,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_STARTLIST,\n"
+ "> +\t\t\t\t    OPAL_STARTNAME,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_TINY_UINT_01, /* Values */\n"
+ "> +\t\t\t\t    OPAL_STARTLIST,\n"
+ "> +\t\t\t\t    OPAL_STARTNAME,\n"
+ "> +\t\t\t\t    OPAL_TINY_UINT_03, /* PIN */\n"
+ "> +\t\t\t\t    dev->key, dev->key_len,\n"
+ "> +\t\t\t\t    OPAL_ENDNAME,\n"
+ "> +\t\t\t\t    OPAL_ENDLIST,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_ENDNAME,\n"
+ "> +\t\t\t\t    OPAL_ENDLIST);\n"
+ "> +\n"
+ "> +\tif (ret < 0) {\n"
+ "> +\t\tpr_err(\"%s: Error building SET CPIN PIN command.\\n\",\n"
+ "> +\t\t       dev->disk_name);\n"
+ "> +\t\treturn ret;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\treturn finalize_and_send(dev, cmd, generic_cont);\n"
+ "> +}\n"
+ "> +\n"
+ "> +static void query_locking_range_cont(int error, void *data)\n"
+ "> +{\n"
+ "> +\tstruct opal_dev *dev = data;\n"
+ "> +\n"
+ "> +\tif (error)\n"
+ "> +\t\tgoto err_return;\n"
+ "> +\n"
+ "> +\terror = parse_and_check_status(dev);\n"
+ "> +\tif (error)\n"
+ "> +\t\tgoto err_return;\n"
+ "> +\n"
+ "> +\tdev->start = response_get_u64(&dev->parsed, 4);\n"
+ "> +\tdev->length = response_get_u64(&dev->parsed, 8);\n"
+ "> +\n"
+ "> +err_return:\n"
+ "> +\tif (dev->oper_cb)\n"
+ "> +\t\tdev->oper_cb(error, dev);\n"
+ "> +}\n"
+ "> +\n"
+ "> +static int query_locking_range(struct opal_dev *dev)\n"
+ "> +{\n"
+ "> +\tu8 lr_buffer[OPAL_UID_LENGTH];\n"
+ "> +\tstruct opal_cmd *cmd;\n"
+ "> +\tconst u8 *method;\n"
+ "> +\tint ret;\n"
+ "> +\n"
+ "> +\tcmd = &dev->cmd;\n"
+ "> +\tclear_opal_cmd(cmd);\n"
+ "> +\n"
+ "> +\tmethod = OPALMETHOD[OPAL_GET];\n"
+ "> +\n"
+ "> +\tif (build_locking_range(lr_buffer, sizeof(lr_buffer), dev->lr) < 0) {\n"
+ "> +\t\tpr_err(\"%s: Can't build locking range\\n\", dev->disk_name);\n"
+ "> +\t\treturn -EINVAL;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tset_comID(cmd, dev->comID);\n"
+ "> +\n"
+ "> +\tret = test_and_add_token_va(cmd, \"c2s 12c\",\n"
+ "> +\t\t\t\t    OPAL_CALL,\n"
+ "> +\t\t\t\t    lr_buffer, OPAL_UID_LENGTH,\n"
+ "> +\t\t\t\t    method, OPAL_METHOD_LENGTH,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_STARTLIST,\n"
+ "> +\t\t\t\t    OPAL_STARTLIST,\n"
+ "> +\t\t\t\t    OPAL_STARTNAME,\n"
+ "> +\t\t\t\t    OPAL_STARTCOLUMN,\n"
+ "> +\t\t\t\t    OPAL_RANGESTART,\n"
+ "> +\t\t\t\t    OPAL_ENDNAME,\n"
+ "> +\t\t\t\t    OPAL_STARTNAME,\n"
+ "> +\t\t\t\t    OPAL_ENDCOLUMN,\n"
+ "> +\t\t\t\t    OPAL_RANGELENGTH,\n"
+ "> +\t\t\t\t    OPAL_ENDNAME,\n"
+ "> +\t\t\t\t    OPAL_ENDLIST,\n"
+ "> +\t\t\t\t    OPAL_ENDLIST);\n"
+ "> +\n"
+ "> +\tif (ret < 0) {\n"
+ "> +\t\tpr_err(\"%s: Error building GET Locking Range command.\\n\",\n"
+ "> +\t\t       dev->disk_name);\n"
+ "> +\t\treturn ret;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\treturn finalize_and_send(dev, cmd, query_locking_range_cont);\n"
+ "> +}\n"
+ "> +\n"
+ "> +static int add_user_to_lr(struct opal_dev *dev)\n"
+ "> +{\n"
+ "> +\tu8 lr_buffer[OPAL_UID_LENGTH];\n"
+ "> +\tu8 user_uid[OPAL_UID_LENGTH];\n"
+ "> +\tstruct opal_cmd *cmd;\n"
+ "> +\tconst u8 *method;\n"
+ "> +\tstruct opal_lock_unlock *lkul;\n"
+ "> +\tint ret;\n"
+ "> +\n"
+ "> +\tcmd = &dev->cmd;\n"
+ "> +\tclear_opal_cmd(cmd);\n"
+ "> +\tset_comID(cmd, dev->comID);\n"
+ "> +\n"
+ "> +\tmethod = OPALMETHOD[OPAL_SET];\n"
+ "> +\n"
+ "> +\tlkul = dev->func_data[dev->state - 1];\n"
+ "> +\n"
+ "> +\tmemcpy(lr_buffer, OPALUID[OPAL_LOCKINGRANGE_ACE_RDLOCKED],\n"
+ "> +\t       OPAL_UID_LENGTH);\n"
+ "> +\n"
+ "> +\tif (lkul->l_state == OPAL_RW)\n"
+ "> +\t\tmemcpy(lr_buffer, OPALUID[OPAL_LOCKINGRANGE_ACE_WRLOCKED],\n"
+ "> +\t\t       OPAL_UID_LENGTH);\n"
+ "> +\n"
+ "> +\tlr_buffer[7] = dev->lr;\n"
+ "> +\n"
+ "> +\tmemcpy(user_uid, OPALUID[OPAL_USER1_UID], OPAL_UID_LENGTH);\n"
+ "> +\tuser_uid[7] = lkul->authority.who;\n"
+ "> +\n"
+ "> +\tret = test_and_add_token_va(cmd, \"c2s 3c 3c 2c 2sc c2sc cs2c 5c\",\n"
+ "> +\t\t\t\t    OPAL_CALL,\n"
+ "> +\t\t\t\t    lr_buffer, OPAL_UID_LENGTH,\n"
+ "> +\t\t\t\t    method, OPAL_METHOD_LENGTH,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_STARTLIST,\n"
+ "> +\t\t\t\t    OPAL_STARTNAME,\n"
+ "> +\t\t\t\t    OPAL_TINY_UINT_01, /* Values */\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_STARTLIST,\n"
+ "> +\t\t\t\t    OPAL_STARTNAME,\n"
+ "> +\t\t\t\t    OPAL_TINY_UINT_03, /* BooleanExpr */\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_STARTLIST,\n"
+ "> +\t\t\t\t    OPAL_STARTNAME,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPALUID[OPAL_HALF_UID_AUTHORITY_OBJ_REF],\n"
+ "> +\t\t\t\t    OPAL_UID_LENGTH_HALF,\n"
+ "> +\t\t\t\t    user_uid, OPAL_UID_LENGTH,\n"
+ "> +\t\t\t\t    OPAL_ENDNAME,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_STARTNAME,\n"
+ "> +\t\t\t\t    OPALUID[OPAL_HALF_UID_AUTHORITY_OBJ_REF],\n"
+ "> +\t\t\t\t    OPAL_UID_LENGTH_HALF,\n"
+ "> +\t\t\t\t    user_uid, OPAL_UID_LENGTH,\n"
+ "> +\t\t\t\t    OPAL_ENDNAME,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_STARTNAME,\n"
+ "> +\t\t\t\t    OPALUID[OPAL_HALF_UID_BOOLEAN_ACE],\n"
+ "> +\t\t\t\t    OPAL_UID_LENGTH_HALF,\n"
+ "> +\t\t\t\t    OPAL_TINY_UINT_01,\n"
+ "> +\t\t\t\t    OPAL_ENDNAME,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_ENDLIST,\n"
+ "> +\t\t\t\t    OPAL_ENDNAME,\n"
+ "> +\t\t\t\t    OPAL_ENDLIST,\n"
+ "> +\t\t\t\t    OPAL_ENDNAME,\n"
+ "> +\t\t\t\t    OPAL_ENDLIST);\n"
+ "> +\tif (ret < 0) {\n"
+ "> +\t\tpr_err(\"%s: Error building add user to locking range command.\\n\",\n"
+ "> +\t\t       dev->disk_name);\n"
+ "> +\t\treturn ret;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\treturn finalize_and_send(dev, cmd, generic_cont);\n"
+ "> +}\n"
+ "> +\n"
+ "> +static int lock_unlock_locking_range(struct opal_dev *dev)\n"
+ "> +{\n"
+ "> +\tu8 lr_buffer[OPAL_UID_LENGTH];\n"
+ "> +\tstruct opal_cmd *cmd;\n"
+ "> +\tconst u8 *method;\n"
+ "> +\tstruct opal_lock_unlock *lkul;\n"
+ "> +\tint ret;\n"
+ "> +\tu8 read_locked = 1, write_locked = 1;\n"
+ "> +\n"
+ "> +\tcmd = &dev->cmd;\n"
+ "> +\tclear_opal_cmd(cmd);\n"
+ "> +\tset_comID(cmd, dev->comID);\n"
+ "> +\n"
+ "> +\tmethod = OPALMETHOD[OPAL_SET];\n"
+ "> +\tlkul = dev->func_data[dev->state - 1];\n"
+ "> +\tif (build_locking_range(lr_buffer, sizeof(lr_buffer), dev->lr) < 0) {\n"
+ "> +\t\tpr_err(\"%s: Can't build locking range\\n\", dev->disk_name);\n"
+ "> +\t\treturn -EINVAL;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tswitch (lkul->l_state) {\n"
+ "> +\tcase OPAL_RO:\n"
+ "> +\t\tread_locked = 0;\n"
+ "> +\t\twrite_locked = 1;\n"
+ "> +\t\tbreak;\n"
+ "> +\tcase OPAL_RW:\n"
+ "> +\t\tread_locked = 0;\n"
+ "> +\t\twrite_locked = 0;\n"
+ "> +\t\tbreak;\n"
+ "> +\tcase OPAL_LK:\n"
+ "> +\t\t/* vars are initalized to locked */\n"
+ "> +\t\tbreak;\n"
+ "> +\tdefault:\n"
+ "> +\t\tpr_err(\"Tried to set an invalid locking state... returning to uland\\n\");\n"
+ "> +\t\treturn 1;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tret = test_and_add_token_va(cmd, \"c2sc 3c 4c 4c 3c\",\n"
+ "> +\t\t\t\t    OPAL_CALL,\n"
+ "> +\t\t\t\t    lr_buffer, OPAL_UID_LENGTH,\n"
+ "> +\t\t\t\t    method, OPAL_METHOD_LENGTH,\n"
+ "> +\t\t\t\t    OPAL_STARTLIST,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_STARTNAME,\n"
+ "> +\t\t\t\t    OPAL_VALUES,\n"
+ "> +\t\t\t\t    OPAL_STARTLIST,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_STARTNAME,\n"
+ "> +\t\t\t\t    OPAL_READLOCKED,\n"
+ "> +\t\t\t\t    read_locked,\n"
+ "> +\t\t\t\t    OPAL_ENDNAME,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_STARTNAME,\n"
+ "> +\t\t\t\t    OPAL_WRITELOCKED,\n"
+ "> +\t\t\t\t    write_locked,\n"
+ "> +\t\t\t\t    OPAL_ENDNAME,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_ENDLIST,\n"
+ "> +\t\t\t\t    OPAL_ENDNAME,\n"
+ "> +\t\t\t\t    OPAL_ENDLIST);\n"
+ "> +\n"
+ "> +\tif (ret < 0) {\n"
+ "> +\t\tpr_err(\"%s: Error building SET command.\\n\", dev->disk_name);\n"
+ "> +\t\treturn ret;\n"
+ "> +\t}\n"
+ "> +\treturn finalize_and_send(dev, cmd, generic_cont);\n"
+ "> +}\n"
+ "> +\n"
+ "> +\n"
+ "> +static int lock_unlock_locking_range_SUM(struct opal_dev *dev)\n"
+ "> +{\n"
+ "> +\tu8 lr_buffer[OPAL_UID_LENGTH];\n"
+ "> +\tstruct opal_cmd *cmd;\n"
+ "> +\tconst u8 *method;\n"
+ "> +\tstruct opal_lock_unlock *lkul;\n"
+ "> +\tint ret;\n"
+ "> +\tu8 read_locked = 1, write_locked = 1;\n"
+ "> +\n"
+ "> +\tcmd = &dev->cmd;\n"
+ "> +\tclear_opal_cmd(cmd);\n"
+ "> +\tset_comID(cmd, dev->comID);\n"
+ "> +\n"
+ "> +\tmethod = OPALMETHOD[OPAL_SET];\n"
+ "> +\tlkul = dev->func_data[dev->state - 1];\n"
+ "> +\tif (build_locking_range(lr_buffer, sizeof(lr_buffer), dev->lr) < 0) {\n"
+ "> +\t\tpr_err(\"%s: Can't build locking range\\n\", dev->disk_name);\n"
+ "> +\t\treturn -EINVAL;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tswitch (lkul->l_state) {\n"
+ "> +\tcase OPAL_RO:\n"
+ "> +\t\tread_locked = 0;\n"
+ "> +\t\twrite_locked = 1;\n"
+ "> +\t\tbreak;\n"
+ "> +\tcase OPAL_RW:\n"
+ "> +\t\tread_locked = 0;\n"
+ "> +\t\twrite_locked = 0;\n"
+ "> +\t\tbreak;\n"
+ "> +\tcase OPAL_LK:\n"
+ "> +\t\t/* vars are initalized to locked */\n"
+ "> +\t\tbreak;\n"
+ "> +\tdefault:\n"
+ "> +\t\tpr_err(\"Tried to set an invalid locking state.\\n\");\n"
+ "> +\t\treturn 1;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tret = test_and_add_token_va(cmd, \"c2sc 3c 4c 4c 4c 4c 3c\",\n"
+ "> +\t\t\t\t    OPAL_CALL,\n"
+ "> +\t\t\t\t    lr_buffer, OPAL_UID_LENGTH,\n"
+ "> +\t\t\t\t    method, OPAL_METHOD_LENGTH,\n"
+ "> +\t\t\t\t    OPAL_STARTLIST,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_STARTNAME,\n"
+ "> +\t\t\t\t    OPAL_VALUES,\n"
+ "> +\t\t\t\t    OPAL_STARTLIST,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_STARTNAME,\n"
+ "> +\t\t\t\t    OPAL_READLOCKENABLED,\n"
+ "> +\t\t\t\t    OPAL_TRUE,\n"
+ "> +\t\t\t\t    OPAL_ENDNAME,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_STARTNAME,\n"
+ "> +\t\t\t\t    OPAL_WRITELOCKENABLED,\n"
+ "> +\t\t\t\t    OPAL_TRUE,\n"
+ "> +\t\t\t\t    OPAL_ENDNAME,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_STARTNAME,\n"
+ "> +\t\t\t\t    OPAL_READLOCKED,\n"
+ "> +\t\t\t\t    read_locked,\n"
+ "> +\t\t\t\t    OPAL_ENDNAME,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_STARTNAME,\n"
+ "> +\t\t\t\t    OPAL_WRITELOCKED,\n"
+ "> +\t\t\t\t    write_locked,\n"
+ "> +\t\t\t\t    OPAL_ENDNAME,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_ENDLIST,\n"
+ "> +\t\t\t\t    OPAL_ENDNAME,\n"
+ "> +\t\t\t\t    OPAL_ENDLIST);\n"
+ "> +\tif (ret < 0) {\n"
+ "> +\t\tpr_err(\"%s: Error building SET command.\\n\", dev->disk_name);\n"
+ "> +\t\treturn ret;\n"
+ "> +\t}\n"
+ "> +\treturn finalize_and_send(dev, cmd, generic_cont);\n"
+ "> +}\n"
+ "> +\n"
+ "> +int activate_lsp(struct opal_dev *dev)\n"
+ "> +{\n"
+ "> +\tu8 user_lr[OPAL_UID_LENGTH];\n"
+ "> +\tconst u8 *method, *uid;\n"
+ "> +\tstruct opal_cmd *cmd;\n"
+ "> +\tint ret;\n"
+ "> +\tsize_t uint_3 = 0x83;\n"
+ "> +\n"
+ "> +\tcmd = &dev->cmd;\n"
+ "> +\n"
+ "> +\tclear_opal_cmd(cmd);\n"
+ "> +\tset_comID(cmd, dev->comID);\n"
+ "> +\n"
+ "> +\tuid = OPALUID[OPAL_LOCKINGSP_UID];\n"
+ "> +\tmethod = OPALMETHOD[OPAL_ACTIVATE];\n"
+ "> +\n"
+ "> +\tret = test_and_add_token_va(cmd, \"c2s\",\n"
+ "> +\t\t\t\t    OPAL_CALL,\n"
+ "> +\t\t\t\t    uid, OPAL_UID_LENGTH,\n"
+ "> +\t\t\t\t    method, OPAL_METHOD_LENGTH);\n"
+ "> +\tif (ret < 0) {\n"
+ "> +\t\tpr_err(\"%s: Error building Activate LockingSP command.\\n\",\n"
+ "> +\t\t       dev->disk_name);\n"
+ "> +\t\treturn ret;\n"
+ "> +\t}\n"
+ "> +\t/* Activating as SUM */\n"
+ "> +\tif (dev->lr > 0) {\n"
+ "> +\t\tret = build_locking_range(user_lr, sizeof(user_lr), dev->lr);\n"
+ "> +\t\tif (ret < 0) {\n"
+ "> +\t\t\tpr_err(\"%s: Can't build locking user\\n\",\n"
+ "> +\t\t\t       dev->disk_name);\n"
+ "> +\t\t\treturn ret;\n"
+ "> +\t\t}\n"
+ "> +\t\ttest_and_add_token_va(cmd, \"2c 4c csc 2c\",\n"
+ "> +\t\t\t\t      OPAL_STARTLIST,\n"
+ "> +\t\t\t\t      OPAL_STARTNAME,\n"
+ "> +\n"
+ "> +\t\t\t\t      uint_3,\n"
+ "> +\t\t\t\t      OPAL_TINY_UINT_06,\n"
+ "> +\t\t\t\t      OPAL_TINY_UINT_00,\n"
+ "> +\t\t\t\t      OPAL_TINY_UINT_00,\n"
+ "> +\n"
+ "> +\t\t\t\t      OPAL_STARTLIST,\n"
+ "> +\t\t\t\t      user_lr, OPAL_UID_LENGTH,\n"
+ "> +\t\t\t\t      OPAL_ENDLIST,\n"
+ "> +\n"
+ "> +\t\t\t\t      OPAL_ENDNAME,\n"
+ "> +\t\t\t\t      OPAL_ENDLIST);\n"
+ "> +\t} else /* Actiave Normal Mode */\n"
+ "> +\t\tret = test_and_add_token_va(cmd, \"2c\",\n"
+ "> +\t\t\t\t\t    OPAL_STARTLIST,\n"
+ "> +\t\t\t\t\t    OPAL_ENDLIST);\n"
+ "> +\n"
+ "> +\tif (ret < 0) {\n"
+ "> +\t\tpr_err(\"%s: Error building Activate LockingSP command.\\n\",\n"
+ "> +\t\t       dev->disk_name);\n"
+ "> +\t\treturn ret;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\treturn finalize_and_send(dev, cmd, generic_cont);\n"
+ "> +}\n"
+ "> +\n"
+ "> +static void get_lsp_lifecycle_cont(int error, void *data)\n"
+ "> +{\n"
+ "> +\n"
+ "> +\tstruct opal_dev *dev = data;\n"
+ "> +\tu8 lc_status;\n"
+ "> +\n"
+ "> +\tif (error)\n"
+ "> +\t\tgoto err_return;\n"
+ "> +\n"
+ "> +\terror = parse_and_check_status(dev);\n"
+ "> +\tif (error)\n"
+ "> +\t\tgoto err_return;\n"
+ "> +\n"
+ "> +\tlc_status = response_get_u64(&dev->parsed, 4);\n"
+ "> +\t/* 0x08 is Manufacured Inactive */\n"
+ "> +\t/* 0x09 is Manufactured */\n"
+ "> +\tif (lc_status != 0x08) {\n"
+ "> +\t\tpr_err(\"%s: Couldn't determine the status of the Lifcycle state\\n\",\n"
+ "> +\t\t       dev->disk_name);\n"
+ "> +\t\terror = -ENODEV;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +err_return:\n"
+ "> +\tif (dev->oper_cb)\n"
+ "> +\t\tdev->oper_cb(error, dev);\n"
+ "> +}\n"
+ "> +\n"
+ "> +/* Determine if we're in the Manufactured Inactive or Active state */\n"
+ "> +int get_lsp_lifecycle(struct opal_dev *dev)\n"
+ "> +{\n"
+ "> +\tstruct opal_cmd *cmd;\n"
+ "> +\tconst u8 *method, *uid;\n"
+ "> +\tint ret;\n"
+ "> +\n"
+ "> +\tcmd = &dev->cmd;\n"
+ "> +\n"
+ "> +\tclear_opal_cmd(cmd);\n"
+ "> +\tset_comID(cmd, dev->comID);\n"
+ "> +\n"
+ "> +\tuid = OPALUID[OPAL_LOCKINGSP_UID];\n"
+ "> +\tmethod = OPALMETHOD[OPAL_GET];\n"
+ "> +\n"
+ "> +\tret = test_and_add_token_va(cmd, \"c2s 2c 4c 4c 2c\",\n"
+ "> +\t\t\t\t    OPAL_CALL,\n"
+ "> +\t\t\t\t    uid, OPAL_UID_LENGTH,\n"
+ "> +\t\t\t\t    method, OPAL_METHOD_LENGTH,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_STARTLIST,\n"
+ "> +\t\t\t\t    OPAL_STARTLIST,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_STARTNAME,\n"
+ "> +\t\t\t\t    OPAL_TINY_UINT_03, /* Start Column */\n"
+ "> +\t\t\t\t    OPAL_TINY_UINT_06, /* Lifcycle Column */\n"
+ "> +\t\t\t\t    OPAL_ENDNAME,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_STARTNAME,\n"
+ "> +\t\t\t\t    OPAL_TINY_UINT_04, /* End Column */\n"
+ "> +\t\t\t\t    OPAL_TINY_UINT_06, /* Lifecycle Column */\n"
+ "> +\t\t\t\t    OPAL_ENDNAME,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_ENDLIST,\n"
+ "> +\t\t\t\t    OPAL_ENDLIST);\n"
+ "> +\n"
+ "> +\tif (ret < 0) {\n"
+ "> +\t\tpr_err(\"%s: Error Building GET Lifecycle Status command\\n\",\n"
+ "> +\t\t       dev->disk_name);\n"
+ "> +\t\treturn ret;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\treturn finalize_and_send(dev, cmd, get_lsp_lifecycle_cont);\n"
+ "> +}\n"
+ "> +\n"
+ "> +static void get_msid_cpin_pin_cont(int error, void *data)\n"
+ "> +{\n"
+ "> +\tconst char *msid_pin;\n"
+ "> +\tstruct opal_dev *dev = data;\n"
+ "> +\tsize_t strlen;\n"
+ "> +\n"
+ "> +\tif (error)\n"
+ "> +\t\tgoto err_return;\n"
+ "> +\n"
+ "> +\terror = parse_and_check_status(dev);\n"
+ "> +\tif (error)\n"
+ "> +\t\tgoto err_return;\n"
+ "> +\n"
+ "> +\tstrlen = response_get_string(&dev->parsed, 4, &msid_pin);\n"
+ "> +\tif (!msid_pin) {\n"
+ "> +\t\tpr_err(\"%s: Couldn't extract PIN from response\\n\", __func__);\n"
+ "> +\t\terror = 1;\n"
+ "> +\t\tgoto err_return;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tdev->prev_data = kmemdup(msid_pin, strlen, GFP_KERNEL);\n"
+ "> +\tif (!dev->prev_data)\n"
+ "> +\t\terror = -ENOMEM;\n"
+ "> +\n"
+ "> +\tdev->prev_d_len = strlen;\n"
+ "> +\n"
+ "> + err_return:\n"
+ "> +\tif (dev->oper_cb)\n"
+ "> +\t\tdev->oper_cb(error, dev);\n"
+ "> +}\n"
+ "> +\n"
+ "> +static int get_msid_cpin_pin(struct opal_dev *dev)\n"
+ "> +{\n"
+ "> +\tconst u8 *method, *smuid;\n"
+ "> +\tint ret;\n"
+ "> +\tstruct opal_cmd *cmd;\n"
+ "> +\n"
+ "> +\tcmd = &dev->cmd;\n"
+ "> +\tclear_opal_cmd(cmd);\n"
+ "> +\tset_comID(cmd, dev->comID);\n"
+ "> +\n"
+ "> +\tsmuid = OPALUID[OPAL_C_PIN_MSID];\n"
+ "> +\tmethod = OPALMETHOD[OPAL_GET];\n"
+ "> +\n"
+ "> +\tret = test_and_add_token_va(cmd, \"c 2s 12c\",\n"
+ "> +\t\t\t\t    OPAL_CALL,\n"
+ "> +\n"
+ "> +\t\t\t\t    smuid, OPAL_UID_LENGTH,\n"
+ "> +\t\t\t\t    method, OPAL_METHOD_LENGTH,\n"
+ "> +\n"
+ "> +\t\t\t\t    OPAL_STARTLIST,\n"
+ "> +\t\t\t\t    OPAL_STARTLIST,\n"
+ "> +\t\t\t\t    OPAL_STARTNAME,\n"
+ "> +\t\t\t\t    OPAL_TINY_UINT_03, /* Sart Column */\n"
+ "> +\t\t\t\t    OPAL_TINY_UINT_03, /* PIN */\n"
+ "> +\t\t\t\t    OPAL_ENDNAME,\n"
+ "> +\t\t\t\t    OPAL_STARTNAME,\n"
+ "> +\t\t\t\t    OPAL_TINY_UINT_04, /* End Column */\n"
+ "> +\t\t\t\t    OPAL_TINY_UINT_03, /* PIN */\n"
+ "> +\t\t\t\t    OPAL_ENDNAME,\n"
+ "> +\t\t\t\t    OPAL_ENDLIST,\n"
+ "> +\t\t\t\t    OPAL_ENDLIST);\n"
+ "> +\n"
+ "> +\tif (ret < 0) {\n"
+ "> +\t\tpr_err(\"%s: Error building Get MSID CPIN PIN command.\\n\",\n"
+ "> +\t\t       dev->disk_name);\n"
+ "> +\t\treturn ret;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\treturn finalize_and_send(dev, cmd, get_msid_cpin_pin_cont);\n"
+ "> +}\n"
+ "> +\n"
+ "> +static void unlock_suspend_final(int error, void *data)\n"
+ "> +{\n"
+ "> +\tstruct opal_dev *dev = data;\n"
+ "> +\n"
+ "> +\tdev->resume_from_suspend = false;\n"
+ "> +\tdev->resume_data = NULL;\n"
+ "> +\tdev->func_data = NULL;\n"
+ "> +\tdev->bdev = NULL;\n"
+ "> +}\n"
+ "> +\n"
+ "> +static int build_end_opal_session(struct opal_dev *dev)\n"
+ "> +{\n"
+ "> +\tstruct opal_cmd *cmd;\n"
+ "> +\n"
+ "> +\tcmd = &dev->cmd;\n"
+ "> +\tclear_opal_cmd(cmd);\n"
+ "> +\n"
+ "> +\tset_comID(cmd, dev->comID);\n"
+ "> +\treturn test_and_add_token_u8(cmd, OPAL_ENDOFSESSION);\n"
+ "> +}\n"
+ "> +\n"
+ "> +static int end_opal_session(struct opal_dev *dev)\n"
+ "> +{\n"
+ "> +\tif (build_end_opal_session(dev) < 0)\n"
+ "> +\t\treturn -1;\n"
+ "> +\treturn finalize_and_send(dev, &dev->cmd, end_session_cont);\n"
+ "> +}\n"
+ "Any reason we cant:\n"
+ "\n"
+ "int ret = build_...\n"
+ "if (ret < 0)\n"
+ "\treturn ret;\n"
+ "\n"
+ "\n"
+ "> +\n"
+ "> +static struct opal_dev *find_opal_dev(struct block_device *bdev, u8 lr)\n"
+ "> +{\n"
+ "> +\tstruct opal_dev *iter, *opal_dev = NULL;\n"
+ "> +\n"
+ "> +\tlist_for_each_entry(iter, &opal_list, node) {\n"
+ "> +\t\tif (strncmp(iter->disk_name, bdev->bd_disk->disk_name,\n"
+ "> +\t\t\t    DISK_NAME_LEN))\n"
+ "> +\t\t\tcontinue;\n"
+ "> +\t\tif (iter->lr == lr) {\n"
+ "> +\t\t\topal_dev = iter;\n"
+ "> +\t\t\tbreak;\n"
+ "> +\t\t}\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\treturn opal_dev;\n"
+ "> +}\n"
+ "> +\n"
+ "> +static int update_opal_dev(struct opal_dev *old_dev, struct opal_dev *new_dev)\n"
+ "> +{\n"
+ "> +\tif (!atomic_add_unless(&old_dev->in_use, 1, 1)) {\n"
+ "> +\t\tpr_err(\"%s: dev was in use\\n\", __func__);\n"
+ "> +\t\treturn -EBUSY;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\told_dev->key_name_len = new_dev->key_name_len;\n"
+ "> +\tif (!memcpy(old_dev->key_name, new_dev->key_name, old_dev->key_name_len)) {\n"
+ "> +\t\tpr_err(\"%s: Error updating device:\\n\", old_dev->disk_name);\n"
+ "> +\t\treturn -EFAULT;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tif (!strncpy(old_dev->disk_name, new_dev->disk_name, DISK_NAME_LEN)) {\n"
+ "> +\t\tpr_err(\"%s: Error registering device: copying disk name\\n\",\n"
+ "> +\t\t       old_dev->disk_name);\n"
+ "> +\t\treturn -EFAULT;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\told_dev->comID = new_dev->comID;\n"
+ "> +\told_dev->start = new_dev->start;\n"
+ "> +\told_dev->length = new_dev->length;\n"
+ "> +\told_dev->align = new_dev->align;\n"
+ "> +\told_dev->lowest_lba = new_dev->lowest_lba;\n"
+ "> +\told_dev->bdev = NULL;\n"
+ "> +\told_dev->final_cb = new_dev->final_cb;\n"
+ "> +\told_dev->final_cb_data = new_dev->final_cb_data;\n"
+ "> +\told_dev->oper_cb = new_dev->oper_cb;\n"
+ "> +\told_dev->state = new_dev->state;\n"
+ "> +\told_dev->funcs = new_dev->funcs;\n"
+ "> +\n"
+ "> +\tkfree(old_dev->completion);\n"
+ "> +\tclean_function_data(old_dev);\n"
+ "> +\n"
+ "> +\told_dev->completion = new_dev->completion;\n"
+ "> +\n"
+ "> +\t/*\n"
+ "> +\t * Won't be able to auto unlock this locking range based on block\n"
+ "> +\t * requestes.\n"
+ "> +\t */\n"
+ "> +\tif (old_dev->length == 0)\n"
+ "> +\t\tpr_warn(\"%s: Missing block information for locking range %d\\n\",\n"
+ "> +\t\t\told_dev->disk_name, old_dev->lr);\n"
+ "> +\n"
+ "> +\treturn 0;\n"
+ "> +}\n"
+ "> +\n"
+ "> +int opal_register_cont(struct opal_dev *new_dev)\n"
+ "> +{\n"
+ "> +\tstruct opal_dev *old_dev;\n"
+ "> +\tunsigned long flags;\n"
+ "> +\tint error = 0;\n"
+ "> +\n"
+ "> +\tspin_lock_irqsave(&list_spinlock, flags);\n"
+ "> +\n"
+ "> +\told_dev = find_opal_dev(new_dev->bdev, new_dev->lr);\n"
+ "> +\tif (!old_dev) {\n"
+ "> +\t\tlist_add_tail(&new_dev->node, &opal_list);\n"
+ "> +\t\told_dev = new_dev;\n"
+ "> +\t} else {\n"
+ "> +\t\tif (old_dev == new_dev)\n"
+ "> +\t\t\terror = 0;\n"
+ "> +\t\telse {\n"
+ "> +\t\t\terror = update_opal_dev(old_dev, new_dev);\n"
+ "> +\t\t\tclean_opal_key(new_dev);\n"
+ "> +\t\t\tkfree(new_dev);\n"
+ "> +\t\t}\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tif (error)\n"
+ "> +\t\tlist_del(&old_dev->node);\n"
+ "> +\n"
+ "> +\tspin_unlock_irqrestore(&list_spinlock, flags);\n"
+ "> +\n"
+ "> +\tif (!error)\n"
+ "> +\t\tpr_info(\"%s: Registered key for locking range: %d\\n\",\n"
+ "> +\t\t\told_dev->disk_name, old_dev->lr);\n"
+ "> +\n"
+ "> +\tif (old_dev->oper_cb)\n"
+ "> +\t\told_dev->oper_cb(error, old_dev);\n"
+ "> +\n"
+ "> +\treturn 0;\n"
+ "> +}\n"
+ "> +\n"
+ "> +static void next(int error, struct opal_dev *dev)\n"
+ "> +{\n"
+ "> +\topal_step func = dev->funcs[dev->state];\n"
+ "> +\tvoid *cb_data = dev->final_cb_data;\n"
+ "> +\tsec_cb *cb = dev->final_cb;\n"
+ "> +\tbool done = false;\n"
+ "> +\n"
+ "> +\n"
+ "> +\tif (error || !func) {\n"
+ "> +\t\tdone = true;\n"
+ "> +\t\tgoto next_exit;\n"
+ "> +\t}\n"
+ "> +\tdev->state++;\n"
+ "> +\tdev->oper_cb = next;\n"
+ "> +\terror = func(dev);\n"
+ "> + next_exit:\n"
+ "> +\tif (error) {\n"
+ "> +\t\tpr_err(\"%s: Error on step function: %d with error %d: %s\\n\",\n"
+ "> +\t\t       dev->disk_name, dev->state, error,\n"
+ "> +\t\t       opal_error_to_human(error));\n"
+ "> +\n"
+ "> +\n"
+ "> +\t\tatomic_dec(&dev->in_use);\n"
+ "> +\t\tif (dev->error_cb) {\n"
+ "> +\t\t\tdev->error_cb(dev->error_cb_data);\n"
+ "> +\t\t\treturn;\n"
+ "> +\t\t}\n"
+ "> +\t\tif (cb)\n"
+ "> +\t\t\tcb(error, cb_data);\n"
+ "> +\n"
+ "> +\t\tdev->completion->completion_status = error;\n"
+ "> +\t\tcomplete(&dev->completion->cmd_completion);\n"
+ "> +\t} else if (!error && done) {\n"
+ "> +\t\tatomic_dec(&dev->in_use);\n"
+ "> +\t\tif (cb)\n"
+ "> +\t\t\tcb(error, cb_data);\n"
+ "> +\t\tdev->completion->completion_status = error;\n"
+ "> +\t\tcomplete(&dev->completion->cmd_completion);\n"
+ "> +\t}\n"
+ "> +}\n"
+ "> +\n"
+ "> +const opal_step error_end_session[] = {\n"
+ "> +\tend_opal_session,\n"
+ "> +\tNULL,\n"
+ "> +};\n"
+ "> +static int end_opal_session_error(struct opal_dev *dev)\n"
+ "> +{\n"
+ "> +\n"
+ "> +\tdev->funcs = error_end_session;\n"
+ "> +\tdev->state = 0;\n"
+ "> +\tdev->error_cb = NULL;\n"
+ "> +\tnext(0, dev);\n"
+ "> +\treturn 0;\n"
+ "> +}\n"
+ "> +\n"
+ "> +static struct opal_dev *alloc_opal_dev(struct block_device *bdev, u8 lr)\n"
+ "> +{\n"
+ "> +\tstruct opal_dev *opal_dev;\n"
+ "> +\tstruct request_queue *q;\n"
+ "> +\tunsigned long dma_align;\n"
+ "> +\tconst char *disk_name;\n"
+ "> +\tstruct opal_cmd *cmd;\n"
+ "> +\tint ret;\n"
+ "> +\n"
+ "> +\topal_dev = kzalloc(sizeof(*opal_dev), GFP_KERNEL);\n"
+ "> +\tif (!opal_dev)\n"
+ "> +\t\treturn ERR_PTR(-ENOMEM);\n"
+ "> +\n"
+ "> +\topal_dev->bdev = bdev;\n"
+ "> +\topal_dev->lr = lr;\n"
+ "> +\tcmd = &opal_dev->cmd;\n"
+ "> +\tcmd->cmd = cmd->cmd_buf;\n"
+ "> +\tcmd->resp = cmd->resp_buf;\n"
+ "> +\n"
+ "> +\tdisk_name = bdev->bd_disk->disk_name;\n"
+ "> +\tif (!strncpy(opal_dev->disk_name, disk_name, DISK_NAME_LEN)) {\n"
+ "> +\t\tpr_err(\"%s: Error registering device: copying disk name\\n\",\n"
+ "> +\t\t       disk_name);\n"
+ "> +\t\tret = -EFAULT;\n"
+ "> +\t\tgoto err_free_dev;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tq = bdev->bd_queue;\n"
+ "> +\tdma_align = (queue_dma_alignment(q) | q->dma_pad_mask) + 1;\n"
+ "> +\tcmd->cmd = (u8 *)round_up((uintptr_t)cmd->cmd, dma_align);\n"
+ "> +\tcmd->resp = (u8 *)round_up((uintptr_t)cmd->resp, dma_align);\n"
+ "> +\n"
+ "> +\tINIT_LIST_HEAD(&opal_dev->node);\n"
+ "> +\tatomic_set(&opal_dev->in_use, 1);\n"
+ "> +\n"
+ "> +\topal_dev->completion = kzalloc(sizeof(*opal_dev->completion),\n"
+ "> +\t\t\t\t       GFP_KERNEL);\n"
+ "> +\n"
+ "> +\tif (!opal_dev->completion)\n"
+ "> +\t\tgoto err_free_dev;\n"
+ "> +\n"
+ "> +\tinit_completion(&opal_dev->completion->cmd_completion);\n"
+ "> +\topal_dev->completion->completion_status = 0;\n"
+ "> +\topal_dev->state = 0;\n"
+ "> +\n"
+ "> +\treturn opal_dev;\n"
+ "> +\n"
+ "> +err_free_dev:\n"
+ "> +\tkfree(opal_dev);\n"
+ "> +\treturn ERR_PTR(ret);\n"
+ "> +}\n"
+ "> +\n"
+ "> +int opal_register(struct block_device *bdev, struct opal_key *key_cmd,\n"
+ "> +\t\t  const opal_step *funcs)\n"
+ "> +{\n"
+ "> +\tstruct opal_dev *new_dev = NULL;\n"
+ "> +\tu8 key_len = key_cmd->key_len;\n"
+ "> +\tu8 lr = key_cmd->lr;\n"
+ "> +\tstruct opal_completion *completion;\n"
+ "> +\tint ret;\n"
+ "> +\n"
+ "> +\tnew_dev = alloc_opal_dev(bdev, lr);\n"
+ "> +\tif (IS_ERR(new_dev)) {\n"
+ "> +\t\tpr_err(\"%s: Error registering device: allocation\\n\",\n"
+ "> +\t\t       bdev->bd_disk->disk_name);\n"
+ "> +\t\treturn PTR_ERR(new_dev);\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tif (!memcpy(new_dev->key_name, key_cmd->key, key_len)) {\n"
+ "> +\t\tpr_err(\"%s: Error registering key: couldn't copy key\\n\",\n"
+ "> +\t\t       new_dev->disk_name);\n"
+ "> +\t\treturn -EFAULT;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tnew_dev->key_name_len = key_len;\n"
+ "> +\tnew_dev->key_type = key_cmd->key_type;\n"
+ "> +\tret = get_opal_key(new_dev);\n"
+ "> +\tif (ret) {\n"
+ "> +\t\tpr_err(\"%s: Couldn't get key: %d\\n\", new_dev->disk_name, ret);\n"
+ "> +\t\treturn ret;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tnew_dev->funcs = funcs;\n"
+ "> +\n"
+ "> +\tnew_dev->state = 0;\n"
+ "> +\tcompletion = new_dev->completion;\n"
+ "> +\tnext(0, new_dev);\n"
+ "> +\n"
+ "> +\treturn wait_for_cmd_completion(completion);\n"
+ "> +}\n"
+ "> +\n"
+ "> +static struct opal_dev *get_registered_opal_dev(struct block_device *bdev,\n"
+ "> +\t\t\t\t\t\tu8 lr)\n"
+ "> +{\n"
+ "> +\tconst char *diskname = bdev->bd_disk->disk_name;\n"
+ "> +\tstruct opal_dev *iter, *dev = NULL;\n"
+ "> +\tunsigned long flags;\n"
+ "> +\tbool in_use = false;\n"
+ "> +\n"
+ "> +\tspin_lock_irqsave(&list_spinlock, flags);\n"
+ "> +\tlist_for_each_entry(iter, &opal_list, node) {\n"
+ "> +\t\tif (strncmp(iter->disk_name, diskname, DISK_NAME_LEN))\n"
+ "> +\t\t\tcontinue;\n"
+ "> +\t\tif (iter->lr == lr) {\n"
+ "> +\t\t\tdev = iter;\n"
+ "> +\t\t\tif (!atomic_add_unless(&iter->in_use, 1, 1)) {\n"
+ "> +\t\t\t\tdev = NULL;\n"
+ "> +\t\t\t\tin_use = true;\n"
+ "> +\t\t\t}\n"
+ "> +\t\t\tbreak;\n"
+ "> +\t\t}\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tspin_unlock_irqrestore(&list_spinlock, flags);\n"
+ "> +\n"
+ "> +\tif (!dev)\n"
+ "> +\t\treturn NULL;\n"
+ "> +\n"
+ "> +\tdev->bdev = bdev;\n"
+ "> +\treturn dev;\n"
+ "> +}\n"
+ "> +\n"
+ "> +/* Free up the Opal dev and its keys during two scenarios:\n"
+ "> + *\n"
+ "> + * 1) When a command is complete that no longer requires\n"
+ "> + *    the opal dev to be around.\n"
+ "> + * 2) When a command, including Opal Save fails we clean\n"
+ "> + *    and free the opal dev.\n"
+ "> + *\n"
+ "> + *    If we find the opal dev structure in the list of\n"
+ "> + *    saved passwords we will *not* remove it.\n"
+ "> + */\n"
+ "> +static void remove_and_clean_opal_dev(struct opal_dev *dev)\n"
+ "> +{\n"
+ "> +\tstruct opal_dev *iter;\n"
+ "> +\tbool found = false;\n"
+ "> +\n"
+ "> +\tspin_lock(&list_spinlock);\n"
+ "> +\tlist_for_each_entry(iter, &opal_list, node) {\n"
+ "> +\t\tif (iter == dev) {\n"
+ "> +\t\t\tfound = true;\n"
+ "> +\t\t\tbreak;\n"
+ "> +\t\t}\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tspin_unlock(&list_spinlock);\n"
+ "> +\tif (!found) {\n"
+ "> +\t\tclean_opal_key(dev);\n"
+ "> +\t\tclean_function_data(dev);\n"
+ "> +\t\tkfree(dev);\n"
+ "> +\t}\n"
+ "> +}\n"
+ "> +\n"
+ "> +static struct opal_dev *get_or_create_opal_dev(struct block_device *bdev,\n"
+ "> +\t\t\t\t\t       u8 lr, bool use_new)\n"
+ "> +{\n"
+ "> +\tstruct opal_dev *dev;\n"
+ "> +\n"
+ "> +\tif (use_new)\n"
+ "> +\t\treturn alloc_opal_dev(bdev, lr);\n"
+ "> +\n"
+ "> +\tdev = get_registered_opal_dev(bdev, lr);\n"
+ "> +\tif (!dev) {\n"
+ "> +\t\tdev = alloc_opal_dev(bdev, lr);\n"
+ "> +\t\tif (!dev)\n"
+ "> +\t\t\treturn NULL;\n"
+ "No need for this check when you already return dev\n"
+ "\n"
+ "\n"
+ "> +\t}\n"
+ "> +\treturn dev;\n"
+ "> +}\n"
+ "Instead, how about:\n"
+ "static struct opal_dev *get_or_create_opal_dev(struct block_device *bdev,\n"
+ "\t\t\t\t\t       u8 lr, bool use_new)\n"
+ "{\n"
+ "\tstruct opal_dev *dev = NULL;\n"
+ "\n"
+ "\tif (!use_new)\n"
+ "\t\tdev = get_registered_opal_dev(bdev, lr);\n"
+ "\n"
+ "\tif (!dev)\n"
+ "\t\tdev = alloc_opal_dev(bdev, lr);\n"
+ "\n"
+ "\treturn dev;\n"
+ "}\n"
+ "\n"
+ "\n"
+ "> +\n"
+ "> +static struct opal_completion *setup_opal_dev(struct block_device *bdev,\n"
+ "> +\t\t\t\t\t      struct opal_dev *dev,\n"
+ "> +\t\t\t\t\t      const opal_step *funcs,\n"
+ "> +\t\t\t\t\t      struct opal_key *key)\n"
+ "> +{\n"
+ "> +\tint ret;\n"
+ "> +\n"
+ "> +\tdev->bdev = bdev;\n"
+ "> +\tdev->state = 0;\n"
+ "> +\tdev->funcs = funcs;\n"
+ "> +\tdev->TSN = 0;\n"
+ "> +\tdev->HSN = 0;\n"
+ "> +\tdev->final_cb = NULL;\n"
+ "> +\tdev->final_cb_data = NULL;\n"
+ "> +\tdev->lr = key->lr;\n"
+ "> +\tdev->error_cb = end_opal_session_error;\n"
+ "> +\tdev->error_cb_data = dev;\n"
+ "> +\n"
+ "> +\tif (key) {\n"
+ "> +\t\tmemcpy(dev->key_name, key->key, key->key_len);\n"
+ "> +\t\tdev->key_name_len = key->key_len;\n"
+ "> +\t\tdev->key_type = key->key_type;\n"
+ "> +\n"
+ "> +\t\tret = get_opal_key(dev);\n"
+ "> +\t\tif (ret) {\n"
+ "> +\t\t\tkfree(dev->completion);\n"
+ "> +\t\t\tpr_err(\"%s: Couldn't get key: %d\\n\",\n"
+ "> +\t\t\t       dev->disk_name, ret);\n"
+ "> +\t\t\treturn ERR_PTR(ret);\n"
+ "> +\t\t}\n"
+ "> +\t}\n"
+ "> +\tdev->func_data = NULL;\n"
+ "> +\tdev->completion->completion_status = 0;\n"
+ "> +\n"
+ "> +\treturn dev->completion;\n"
+ "> +}\n"
+ "> +\n"
+ "> +static int internal_setup_lr(struct block_device *bdev,\n"
+ "> +\t\t\t     struct opal_user_lr_setup *setup)\n"
+ "> +{\n"
+ "> +\tstruct opal_dev *dev;\n"
+ "> +\tstruct opal_completion *completion;\n"
+ "> +\tvoid *data[3] = { NULL };\n"
+ "> +\tconst opal_step lr_funcs[] = {\n"
+ "> +\t\topal_discovery0,\n"
+ "> +\t\tstart_auth_opal_session,\n"
+ "> +\t\tsetup_locking_range,\n"
+ "> +\t\tget_active_key,\n"
+ "> +\t\tgen_key,\n"
+ "> +\t\tend_opal_session,\n"
+ "> +\t\tNULL,\n"
+ "> +\t};\n"
+ "> +\tint ret;\n"
+ "> +\n"
+ "> +\tdev = get_or_create_opal_dev(bdev, setup->key.lr, true);\n"
+ "> +\tif (!dev)\n"
+ "> +\t\treturn -ENOMEM;\n"
+ "> +\n"
+ "> +\tcompletion = setup_opal_dev(bdev, dev, lr_funcs, &setup->key);\n"
+ "> +\tif (IS_ERR(completion)) {\n"
+ "> +\t\tret = PTR_ERR(completion);\n"
+ "> +\t\tgoto error_return;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tdev->func_data = data;\n"
+ "> +\tdev->num_func_data = 3;\n"
+ "> +\tdev->func_data[1] = &setup->who;\n"
+ "> +\tdev->func_data[2] = setup;\n"
+ "> +\n"
+ "> +\tnext(0, dev);\n"
+ "> +\tret = wait_for_cmd_completion(completion);\n"
+ "> +\n"
+ "> + error_return:\n"
+ "> +\tremove_and_clean_opal_dev(dev);\n"
+ "> +\treturn ret;\n"
+ "> +}\n"
+ "> +\n"
+ "> +int opal_revert(struct block_device *bdev, struct opal_key *key)\n"
+ "> +{\n"
+ "> +\tconst opal_step revert_funcs[] = {\n"
+ "> +\t\topal_discovery0,\n"
+ "> +\t\tstart_SIDASP_opal_session,\n"
+ "> +\t\trevert_tper, /* controller will terminate session */\n"
+ "> +\t\tNULL,\n"
+ "> +\t};\n"
+ "> +\n"
+ "> +\treturn opal_register(bdev, key, revert_funcs);\n"
+ "> +}\n"
+ "> +\n"
+ "> +int activate_user(struct block_device *bdev, struct opal_activate_user *act)\n"
+ "> +{\n"
+ "> +\tconst opal_step act_funcs[] = {\n"
+ "> +\t\topal_discovery0,\n"
+ "> +\t\tstart_admin1LSP_opal_session,\n"
+ "> +\t\tinternal_activate_user,\n"
+ "> +\t\tend_opal_session,\n"
+ "> +\t\tNULL\n"
+ "> +\t};\n"
+ "> +\tstruct opal_dev *dev;\n"
+ "> +\tstruct opal_completion *completion;\n"
+ "> +\tvoid *data[3] = { NULL };\n"
+ "> +\tint ret;\n"
+ "> +\n"
+ "> +\tdev = get_or_create_opal_dev(bdev, act->key.lr, true);\n"
+ "> +\tif (!dev)\n"
+ "> +\t\treturn -ENOMEM;\n"
+ "> +\n"
+ "> +\tcompletion = setup_opal_dev(bdev, dev, act_funcs, &act->key);\n"
+ "> +\tif (IS_ERR(completion)) {\n"
+ "> +\t\tret = PTR_ERR(completion);\n"
+ "> +\t\tgoto error_return;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tdev->num_func_data = 3;\n"
+ "> +\tdev->func_data = data;\n"
+ "> +\tdev->func_data[1] = act;\n"
+ "> +\tdev->func_data[2] = act;\n"
+ "> +\n"
+ "> +\tnext(0, dev);\n"
+ "> +\tret = wait_for_cmd_completion(completion);\n"
+ "> +\n"
+ "> + error_return:\n"
+ "> +\tremove_and_clean_opal_dev(dev);\n"
+ "> +\treturn ret;\n"
+ "> +}\n"
+ "> +\n"
+ "> +int opal_set_pw(struct block_device *bdev, struct opal_new_pw *pw)\n"
+ "> +\n"
+ "> +{\n"
+ "> +\tconst opal_step pw_funcs[] = {\n"
+ "> +\t\topal_discovery0,\n"
+ "> +\t\tstart_auth_opal_session,\n"
+ "> +\t\tset_new_pw,\n"
+ "> +\t\tend_opal_session,\n"
+ "> +\t\tNULL\n"
+ "> +\t};\n"
+ "> +\tstruct opal_dev *dev;\n"
+ "> +\tstruct opal_completion *completion;\n"
+ "> +\tvoid *data[3] = { NULL };\n"
+ "> +\tint ret;\n"
+ "> +\n"
+ "> +\tdev = get_or_create_opal_dev(bdev, pw->current_pin.lr, true);\n"
+ "> +\tif (!dev)\n"
+ "> +\t\treturn -ENOMEM;\n"
+ "> +\n"
+ "> +\tcompletion = setup_opal_dev(bdev, dev, pw_funcs, &pw->current_pin);\n"
+ "> +\tif (IS_ERR(completion)) {\n"
+ "> +\t\tret = PTR_ERR(completion);\n"
+ "> +\t\tgoto error_return;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tdev->num_func_data = 3;\n"
+ "> +\tdev->func_data = data;\n"
+ "> +\tdev->func_data[1] = (void *) &pw->who;\n"
+ "> +\tdev->func_data[2] = (void *) pw;\n"
+ "> +\n"
+ "> +\tnext(0, dev);\n"
+ "> +\tret = wait_for_cmd_completion(completion);\n"
+ "> +\n"
+ "> + error_return:\n"
+ "> +\tremove_and_clean_opal_dev(dev);\n"
+ "> +\treturn ret;\n"
+ "> +}\n"
+ "> +\n"
+ "> +int opal_act_lsp_int(struct block_device *bdev, struct opal_key *key,\n"
+ "> +\t\t     const opal_step *funcs)\n"
+ "> +{\n"
+ "> +\tstruct opal_dev *dev;\n"
+ "> +\tstruct opal_completion *completion;\n"
+ "> +\tint ret;\n"
+ "> +\n"
+ "> +\tdev = get_or_create_opal_dev(bdev, key->lr, true);\n"
+ "> +\tif (!dev)\n"
+ "> +\t\treturn -ENOMEM;\n"
+ "> +\tcompletion = setup_opal_dev(bdev, dev, funcs, key);\n"
+ "> +\tif (IS_ERR(completion)) {\n"
+ "> +\t\tret = PTR_ERR(completion);\n"
+ "> +\t\tgoto error_return;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tnext(0, dev);\n"
+ "> +\tret = wait_for_cmd_completion(completion);\n"
+ "> +\n"
+ "> + error_return:\n"
+ "> +\tremove_and_clean_opal_dev(dev);\n"
+ "> +\treturn ret;\n"
+ "> +}\n"
+ "> +\n"
+ "> +\n"
+ "> +static int opal_save_internal(struct block_device *bdev,\n"
+ "> +\t\t\t      struct opal_lock_unlock *lk)\n"
+ "> +{\n"
+ "> +\tvoid *func_data[3] = { NULL };\n"
+ "> +\tstruct opal_dev *dev;\n"
+ "> +\tstruct opal_completion *completion;\n"
+ "> +\tconst opal_step _auth_funcs[] = {\n"
+ "> +\t\topal_discovery0,\n"
+ "> +\t\tstart_auth_opal_session,\n"
+ "> +\t\tquery_locking_range,\n"
+ "> +\t\tend_opal_session,\n"
+ "> +\t\topal_register_cont,\n"
+ "> +\t\tNULL\n"
+ "> +\t};\n"
+ "> +\tint ret;\n"
+ "> +\n"
+ "> +\tdev = get_or_create_opal_dev(bdev, lk->key.lr, false);\n"
+ "> +\tif (!dev)\n"
+ "> +\t\treturn -ENOMEM;\n"
+ "> +\tcompletion = setup_opal_dev(bdev, dev, _auth_funcs, &lk->key);\n"
+ "> +\tif (IS_ERR(completion)) {\n"
+ "> +\t\tret = PTR_ERR(completion);\n"
+ "> +\t\tgoto error_return;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tdev->num_func_data = 3;\n"
+ "> +\tdev->func_data = func_data;\n"
+ "> +\tdev->func_data[1] = &lk->authority;\n"
+ "> +\tdev->lkul = *lk;\n"
+ "> +\n"
+ "> +\tnext(0, dev);\n"
+ "> +\tret = wait_for_cmd_completion(completion);\n"
+ "> +\n"
+ "> + error_return:\n"
+ "> +\tremove_and_clean_opal_dev(dev);\n"
+ "> +\treturn ret;\n"
+ "> +}\n"
+ "> +\n"
+ "> +static int add_user_lr_internal(struct block_device *bdev,\n"
+ "> +\t\t\t\tstruct opal_lock_unlock *lk)\n"
+ "> +{\n"
+ "> +\tvoid *func_data[3] = { NULL };\n"
+ "> +\tstruct opal_dev *dev;\n"
+ "> +\tstruct opal_completion *completion;\n"
+ "> +\tconst opal_step funcs[] = {\n"
+ "> +\t\topal_discovery0,\n"
+ "> +\t\tstart_admin1LSP_opal_session,\n"
+ "> +\t\tadd_user_to_lr,\n"
+ "> +\t\tend_opal_session,\n"
+ "> +\t\tNULL\n"
+ "> +\t};\n"
+ "> +\tint ret;\n"
+ "> +\n"
+ "> +\tdev = get_or_create_opal_dev(bdev, lk->key.lr, true);\n"
+ "> +\tif (!dev)\n"
+ "> +\t\treturn -ENOMEM;\n"
+ "> +\tcompletion = setup_opal_dev(bdev, dev, funcs, &lk->key);\n"
+ "> +\tif (IS_ERR(completion)) {\n"
+ "> +\t\tret = PTR_ERR(completion);\n"
+ "> +\t\tgoto error_return;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tdev->num_func_data = 3;\n"
+ "> +\tdev->func_data = func_data;\n"
+ "> +\tdev->func_data[2] = lk;\n"
+ "> +\n"
+ "> +\tnext(0, dev);\n"
+ "> +\tret = wait_for_cmd_completion(completion);\n"
+ "> +\n"
+ "> + error_return:\n"
+ "> +\tremove_and_clean_opal_dev(dev);\n"
+ "> +\treturn ret;\n"
+ "> +}\n"
+ "> +\n"
+ "> +static int lock_unlock_internal(struct block_device *bdev,\n"
+ "> +\t\t\t\tstruct opal_lock_unlock *lk)\n"
+ "> +{\n"
+ "> +\tvoid *func_data[3] = { NULL };\n"
+ "> +\tstruct opal_dev *dev;\n"
+ "> +\tstruct opal_completion *completion;\n"
+ "> +\n"
+ "> +\tconst opal_step ulk_funcs_SUM[] = {\n"
+ "> +\t\topal_discovery0,\n"
+ "> +\t\tstart_auth_opal_session,\n"
+ "> +\t\tlock_unlock_locking_range_SUM,\n"
+ "> +\t\tend_opal_session,\n"
+ "> +\t\tNULL\n"
+ "> +\t};\n"
+ "> +\tconst opal_step _unlock_funcs[] = {\n"
+ "> +\t\topal_discovery0,\n"
+ "> +\t\tstart_auth_opal_session,\n"
+ "> +\t\tlock_unlock_locking_range,\n"
+ "> +\t\tend_opal_session,\n"
+ "> +\t\tNULL\n"
+ "> +\t};\n"
+ "> +\tint ret;\n"
+ "> +\n"
+ "> +\tdev = get_or_create_opal_dev(bdev, lk->key.lr, true);\n"
+ "> +\tif (!dev)\n"
+ "> +\t\treturn -ENOMEM;\n"
+ "> +\n"
+ "> +\tif (lk->authority.SUM)\n"
+ "> +\t\tcompletion = setup_opal_dev(bdev, dev, ulk_funcs_SUM, &lk->key);\n"
+ "> +\telse\n"
+ "> +\t\tcompletion = setup_opal_dev(bdev, dev, _unlock_funcs, &lk->key);\n"
+ "> +\n"
+ "> +\tif (IS_ERR(completion)) {\n"
+ "> +\t\tret = PTR_ERR(completion);\n"
+ "> +\t\tgoto error_return;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tdev->num_func_data = 3;\n"
+ "> +\tdev->func_data = func_data;\n"
+ "> +\tdev->func_data[1] = &lk->authority;\n"
+ "> +\tdev->func_data[2] = lk;\n"
+ "> +\n"
+ "> +\tnext(0, dev);\n"
+ "> +\tret = wait_for_cmd_completion(completion);\n"
+ "> +\n"
+ "> + error_return:\n"
+ "> +\tremove_and_clean_opal_dev(dev);\n"
+ "> +\treturn ret;\n"
+ "> +}\n"
+ "> +\n"
+ "> +int opal_erase_locking_range(struct block_device *bdev, struct sed_key *key)\n"
+ "> +{\n"
+ "> +\tstruct opal_dev *dev;\n"
+ "> +\tstruct opal_completion *completion;\n"
+ "> +\tstruct opal_key k;\n"
+ "> +\tint ret;\n"
+ "> +\tconst opal_step erase_funcs[] = {\n"
+ "> +\t\topal_discovery0,\n"
+ "> +\t\tstart_admin1LSP_opal_session,\n"
+ "> +\t\terase_locking_range,\n"
+ "> +\t\tend_opal_session,\n"
+ "> +\t\tNULL,\n"
+ "> +\t};\n"
+ "> +\n"
+ "> +\tif (!bdev || !bdev->bd_disk) {\n"
+ "> +\t\tpr_err(\"Can't save password for NULL block device.\\n\");\n"
+ "> +\t\treturn -EINVAL;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tif (copy_from_user(&k, key->opal, sizeof(*key->opal)))\n"
+ "> +\t\treturn -EFAULT;\n"
+ "> +\n"
+ "> +\tdev = get_or_create_opal_dev(bdev, k.lr, true);\n"
+ "> +\tif (!dev)\n"
+ "> +\t\treturn -ENOMEM;\n"
+ "> +\n"
+ "> +\tcompletion = setup_opal_dev(bdev, dev, erase_funcs, &k);\n"
+ "> +\tif (IS_ERR(completion)) {\n"
+ "> +\t\tret = PTR_ERR(completion);\n"
+ "> +\t\tgoto error_return;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tnext(0, dev);\n"
+ "> +\tret = wait_for_cmd_completion(completion);\n"
+ "> +\n"
+ "> + error_return:\n"
+ "> +\tremove_and_clean_opal_dev(dev);\n"
+ "> +\treturn ret;\n"
+ "> +}\n"
+ "> +EXPORT_SYMBOL(opal_erase_locking_range);\n"
+ "> +\n"
+ "> +int opal_enable_disable_shadow_mbr(struct block_device *bdev,\n"
+ "> +\t\t\t\t   struct sed_key *key)\n"
+ "> +{\n"
+ "> +\tvoid *func_data[6] = { NULL };\n"
+ "> +\tstruct opal_mbr_data mbr;\n"
+ "> +\tstruct opal_dev *dev;\n"
+ "> +\tstruct opal_completion *completion;\n"
+ "> +\tconst opal_step mbr_funcs[] = {\n"
+ "> +\t\topal_discovery0,\n"
+ "> +\t\tstart_admin1LSP_opal_session,\n"
+ "> +\t\tset_mbr_done,\n"
+ "> +\t\tend_opal_session,\n"
+ "> +\t\tstart_admin1LSP_opal_session,\n"
+ "> +\t\tset_mbr_enable_disable,\n"
+ "> +\t\tend_opal_session,\n"
+ "> +\t\tNULL,\n"
+ "> +\t};\n"
+ "> +\tint ret;\n"
+ "> +\n"
+ "> +\tif (!bdev || !bdev->bd_disk) {\n"
+ "> +\t\tpr_err(\"Can't save password for NULL block device.\\n\");\n"
+ "> +\t\treturn -EINVAL;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tif (copy_from_user(&mbr, key->opal_mbr, sizeof(*key->opal_mbr)))\n"
+ "> +\t\treturn -EFAULT;\n"
+ "> +\n"
+ "> +\tif (mbr.enable_disable != OPAL_MBR_ENABLE &&\n"
+ "> +\t    mbr.enable_disable != OPAL_MBR_DISABLE)\n"
+ "> +\t\treturn -EINVAL;\n"
+ "> +\n"
+ "> +\tdev = get_or_create_opal_dev(bdev, mbr.key.lr, true);\n"
+ "> +\tif (!dev)\n"
+ "> +\t\treturn -ENOMEM;\n"
+ "> +\n"
+ "> +\tcompletion = setup_opal_dev(bdev, dev, mbr_funcs, &mbr.key);\n"
+ "> +\tif (IS_ERR(completion)) {\n"
+ "> +\t\tret = PTR_ERR(completion);\n"
+ "> +\t\tgoto error_return;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tdev->num_func_data = 6;\n"
+ "> +\tdev->func_data = func_data;\n"
+ "> +\tdev->func_data[2] = &mbr.enable_disable;\n"
+ "> +\tdev->func_data[5] = &mbr.enable_disable;\n"
+ "> +\n"
+ "> +\tnext(0, dev);\n"
+ "> +\tret = wait_for_cmd_completion(completion);\n"
+ "> +\n"
+ "> + error_return:\n"
+ "> +\tremove_and_clean_opal_dev(dev);\n"
+ "> +\treturn ret;\n"
+ "> +\n"
+ "> +}\n"
+ "> +EXPORT_SYMBOL(opal_enable_disable_shadow_mbr);\n"
+ "> +\n"
+ "> +int opal_save(struct block_device *bdev, struct sed_key *key)\n"
+ "> +{\n"
+ "> +\tstruct opal_lock_unlock lkul;\n"
+ "> +\n"
+ "> +\tif (!bdev || !bdev->bd_disk) {\n"
+ "> +\t\tpr_err(\"Can't save password for NULL block device.\\n\");\n"
+ "> +\t\treturn -EINVAL;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tif (copy_from_user(&lkul, key->opal_lk_unlk, sizeof(*key->opal)))\n"
+ "> +\t\treturn -EFAULT;\n"
+ "> +\n"
+ "> +\treturn opal_save_internal(bdev, &lkul);\n"
+ "> +}\n"
+ "> +EXPORT_SYMBOL(opal_save);\n"
+ "> +\n"
+ "> +int opal_add_user_to_lr(struct block_device *bdev, struct sed_key *key)\n"
+ "> +{\n"
+ "> +\tstruct opal_lock_unlock lkul;\n"
+ "> +\n"
+ "> +\tif (copy_from_user(&lkul, key->opal_lk_unlk, sizeof(lkul)))\n"
+ "> +\t\treturn -EFAULT;\n"
+ "> +\n"
+ "> +\tif (!bdev || !bdev->bd_disk) {\n"
+ "> +\t\tpr_err(\"Can't assign user to LR without backing disk\\n\");\n"
+ "> +\t\treturn -EFAULT;\n"
+ "> +\t}\n"
+ "> +\tif (lkul.l_state != OPAL_RO && lkul.l_state != OPAL_RW) {\n"
+ "> +\t\tpr_err(\"Locking state was not RO or RW\\n\");\n"
+ "> +\t\treturn -EINVAL;\n"
+ "> +\t}\n"
+ "> +\tif (lkul.authority.who < OPAL_USER1 &&\n"
+ "> +\t    lkul.authority.who > OPAL_USER9) {\n"
+ "> +\t\tpr_err(\"Authority was not within the range of users: %d\\n\",\n"
+ "> +\t\t       lkul.authority.who);\n"
+ "> +\t\treturn -EINVAL;\n"
+ "> +\t}\n"
+ "> +\tif (lkul.authority.SUM) {\n"
+ "> +\t\tpr_err(\"%s not supported in SUM. Use setup locking range\\n\",\n"
+ "> +\t\t       __func__);\n"
+ "> +\t\treturn -EINVAL;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\treturn add_user_lr_internal(bdev, &lkul);\n"
+ "> +}\n"
+ "> +EXPORT_SYMBOL(opal_add_user_to_lr);\n"
+ "> +\n"
+ "> +int opal_reverttper(struct block_device *bdev, struct sed_key *key)\n"
+ "> +{\n"
+ "> +\tstruct opal_key k;\n"
+ "> +\n"
+ "> +\tif (copy_from_user(&k, key->opal, sizeof(*key->opal)))\n"
+ "> +\t\treturn -EFAULT;\n"
+ "> +\n"
+ "> +\treturn opal_revert(bdev, &k);\n"
+ "> +}\n"
+ "> +EXPORT_SYMBOL(opal_reverttper);\n"
+ "> +\n"
+ "> +int opal_lock_unlock(struct block_device *bdev, struct sed_key *key)\n"
+ "> +{\n"
+ "> +\tstruct opal_lock_unlock k;\n"
+ "> +\n"
+ "> +\tif (copy_from_user(&k, key->opal_lk_unlk, sizeof(*key->opal_lk_unlk)))\n"
+ "> +\t\treturn -EFAULT;\n"
+ "> +\n"
+ "> +\tif (k.authority.who < OPAL_ADMIN1 || k.authority.who >= OPAL_USER9)\n"
+ "Should this be > OPAL_USER9 ?\n"
+ "\n"
+ "\n"
+ "> +\t\treturn -EINVAL;\n"
+ "> +\n"
+ "> +\treturn lock_unlock_internal(bdev, &k);\n"
+ "> +}\n"
+ "> +EXPORT_SYMBOL(opal_lock_unlock);\n"
+ "> +\n"
+ "> +int opal_take_ownership(struct block_device *bdev, struct sed_key *key)\n"
+ "> +{\n"
+ "> +\tstruct opal_key k;\n"
+ "> +\tconst opal_step owner_funcs[] = {\n"
+ "> +\t\topal_discovery0,\n"
+ "> +\t\tstart_anybodyASP_opal_session,\n"
+ "> +\t\tget_msid_cpin_pin,\n"
+ "> +\t\tend_opal_session,\n"
+ "> +\t\tstart_SIDASP_opal_session,\n"
+ "> +\t\tset_sid_cpin_pin,\n"
+ "> +\t\tend_opal_session,\n"
+ "> +\t\tNULL\n"
+ "> +\t};\n"
+ "> +\n"
+ "> +\tif (!bdev || !bdev->bd_disk) {\n"
+ "> +\t\tpr_err(\"Can't save password for NULL block device.\\n\");\n"
+ "> +\t\treturn -EINVAL;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tif (copy_from_user(&k, key->opal, sizeof(*key->opal)))\n"
+ "> +\t\treturn -EFAULT;\n"
+ "> +\n"
+ "> +\treturn opal_register(bdev, &k, owner_funcs);\n"
+ "> +}\n"
+ "> +EXPORT_SYMBOL(opal_take_ownership);\n"
+ "> +\n"
+ "> +int opal_activate_lsp(struct block_device *bdev, struct sed_key *key)\n"
+ "> +{\n"
+ "> +\tstruct opal_key k;\n"
+ "> +\tconst opal_step active_funcs[] = {\n"
+ "> +\t\topal_discovery0,\n"
+ "> +\t\tstart_SIDASP_opal_session, /* Open session as SID auth */\n"
+ "> +\t\tget_lsp_lifecycle,\n"
+ "> +\t\tactivate_lsp,\n"
+ "> +\t\tend_opal_session,\n"
+ "> +\t\tNULL\n"
+ "> +\t};\n"
+ "> +\n"
+ "> +\tif (!bdev || !bdev->bd_disk) {\n"
+ "> +\t\tpr_err(\"Can't save password for NULL block device.\\n\");\n"
+ "> +\t\treturn -EINVAL;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tif (copy_from_user(&k, key->opal, sizeof(*key->opal)))\n"
+ "> +\t\treturn -EFAULT;\n"
+ "> +\n"
+ "> +\treturn opal_act_lsp_int(bdev, &k, active_funcs);\n"
+ "> +}\n"
+ "> +EXPORT_SYMBOL(opal_activate_lsp);\n"
+ "> +\n"
+ "> +int opal_setup_locking_range(struct block_device *bdev, struct sed_key *pw)\n"
+ "> +{\n"
+ "> +\tstruct opal_user_lr_setup k;\n"
+ "> +\n"
+ "> +\tif (!bdev || !bdev->bd_disk) {\n"
+ "> +\t\tpr_err(\"Can't save password for NULL block device.\\n\");\n"
+ "> +\t\treturn -EINVAL;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tif (copy_from_user(&k, pw->opal_lrs, sizeof(*pw->opal_lrs)))\n"
+ "> +\t\treturn -EFAULT;\n"
+ "> +\n"
+ "> +\treturn internal_setup_lr(bdev, &k);\n"
+ "> +}\n"
+ "> +\n"
+ "> +int opal_set_new_pw(struct block_device *bdev, struct sed_key *pw)\n"
+ "> +{\n"
+ "> +\tstruct opal_new_pw k;\n"
+ "> +\n"
+ "> +\tif (pw->sed_type != OPAL_PW)\n"
+ "> +\t\treturn -EINVAL;\n"
+ "> +\n"
+ "> +\tif (copy_from_user(&k, pw->opal_pw, sizeof(*pw->opal_pw)))\n"
+ "> +\t\treturn -EFAULT;\n"
+ "> +\n"
+ "> +\tif (k.who.who < OPAL_ADMIN1 || k.who.who > OPAL_USER9)\n"
+ "> +\t\treturn -EINVAL;\n"
+ "> +\n"
+ "> +\treturn opal_set_pw(bdev, &k);\n"
+ "> +}\n"
+ "> +EXPORT_SYMBOL(opal_set_new_pw);\n"
+ "> +\n"
+ "> +int opal_activate_user(struct block_device *bdev, struct sed_key *pw)\n"
+ "> +{\n"
+ "> +\tstruct opal_activate_user k;\n"
+ "> +\n"
+ "> +\tif (pw->sed_type != OPAL_ACT_USR) {\n"
+ "> +\t\tpr_err(\"Sed type was not act user\\n\");\n"
+ "> +\t\treturn -EINVAL;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\tif (copy_from_user(&k, pw->opal_act, sizeof(*pw->opal_act))) {\n"
+ "> +\t\tpr_err(\"copy from user error\\n\");\n"
+ "> +\t\treturn -EFAULT;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\t/* We can't activate Admin1 it's active as manufactured */\n"
+ "> +\tif (k.who.who < OPAL_USER1 && k.who.who > OPAL_USER9) {\n"
+ "> +\t\tpr_err(\"Who was not a valid user: %d \\n\", k.who.who);\n"
+ "> +\t\treturn -EINVAL;\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\treturn activate_user(bdev, &k);\n"
+ "> +\n"
+ "> +}\n"
+ "> +EXPORT_SYMBOL(opal_activate_user);\n"
+ "> +\n"
+ "> +int opal_unlock_from_suspend(struct opal_suspend_unlk *data)\n"
+ "> +{\n"
+ "> +\tconst char *diskname = data->name;\n"
+ "> +\tstruct opal_dev *iter, *dev = NULL;\n"
+ "> +\tstruct opal_completion *completion;\n"
+ "> +\tvoid *func_data[3] = { NULL };\n"
+ "> +\tconst opal_step _unlock_funcs_SUM[] = {\n"
+ "> +\t\topal_discovery0,\n"
+ "> +\t\tstart_auth_opal_session,\n"
+ "> +\t\tlock_unlock_locking_range,\n"
+ "Did you mean to use lock_unlock_locking_range_SUM ?\n"
+ "Can we pull these two arrays out since they are required for both this\n"
+ "function and lock_unlock_internal ?\n"
+ "\n"
+ "\n"
+ "> +\t\tend_opal_session,\n"
+ "> +\t\tNULL\n"
+ "> +\t};\n"
+ "> +\tconst opal_step _unlock_funcs[] = {\n"
+ "> +\t\topal_discovery0,\n"
+ "> +\t\tstart_auth_opal_session,\n"
+ "> +\t\tlock_unlock_locking_range,\n"
+ "> +\t\tend_opal_session,\n"
+ "> +\t\tNULL\n"
+ "> +\t};\n"
+ "> +\n"
+ "> +\n"
+ "> +\tspin_lock(&list_spinlock);\n"
+ "> +\tlist_for_each_entry(iter, &opal_list, node) {\n"
+ "> +\t\tif (strncmp(iter->disk_name, diskname, DISK_NAME_LEN)) {\n"
+ "> +\t\t\tpr_err(\"iterdisk was %s and diskname is %s\\n\",\n"
+ "> +\t\t\t       iter->disk_name, diskname);\n"
+ "> +\t\t\tcontinue;\n"
+ "> +\t\t}\n"
+ "> +\t\tif (atomic_add_unless(&iter->in_use, 1, 1)) {\n"
+ "> +\t\t\tdev = iter;\n"
+ "> +\t\t\tdev->func_data = func_data;\n"
+ "> +\t\t\tdev->resume_from_suspend = true;\n"
+ "> +\t\t\tdev->resume_data = data;\n"
+ "> +\t\t\tdev->final_cb = unlock_suspend_final;\n"
+ "> +\t\t\tdev->final_cb_data = dev;\n"
+ "> +\t\t\tdev->error_cb = end_opal_session_error;\n"
+ "> +\t\t\tdev->error_cb_data = dev;\n"
+ "> +\t\t\tdev->state = 0;\n"
+ "> +\t\t\tif (dev->lkul.authority.SUM)\n"
+ "> +\t\t\t\tdev->funcs = _unlock_funcs_SUM;\n"
+ "> +\t\t\telse\n"
+ "> +\t\t\t\tdev->funcs = _unlock_funcs;\n"
+ "> +\t\t\tdev->TSN = 0;\n"
+ "> +\t\t\tdev->HSN = 0;\n"
+ "> +\t\t\tdev->func_data[2] = &dev->lkul;\n"
+ "> +\t\t\tdev->func_data[1] = &dev->lkul.authority;\n"
+ "> +\t\t\tcompletion = dev->completion;\n"
+ "> +\t\t\tnext(0, dev);\n"
+ "> +\t\t\twait_for_cmd_completion(completion);\n"
+ "> +\t\t}\n"
+ "> +\t}\n"
+ "> +\tspin_unlock(&list_spinlock);\n"
+ "> +\n"
+ "> +\tif (!dev)\n"
+ "> +\t\treturn -ENODEV;\n"
+ "> +\treturn 0;\n"
+ "> +}\n"
+ "> +EXPORT_SYMBOL(opal_unlock_from_suspend);\n"
+ "> diff --git a/lib/sed-opal_internal.h b/lib/sed-opal_internal.h\n"
+ "> new file mode 100644\n"
+ "> index 0000000..c9d3883\n"
+ "> --- /dev/null\n"
+ "> +++ b/lib/sed-opal_internal.h\n"
+ "> @@ -0,0 +1,586 @@\n"
+ "> +/*\n"
+ "> + * Copyright ? 2016 Intel Corporation\n"
+ "> + *\n"
+ "> + * Permission is hereby granted, free of charge, to any person obtaining a\n"
+ "> + * copy of this software and associated documentation files (the \"Software\"),\n"
+ "> + * to deal in the Software without restriction, including without limitation\n"
+ "> + * the rights to use, copy, modify, merge, publish, distribute, sublicense,\n"
+ "> + * and/or sell copies of the Software, and to permit persons to whom the\n"
+ "> + * Software is furnished to do so, subject to the following conditions:\n"
+ "> + *\n"
+ "> + * The above copyright notice and this permission notice (including the next\n"
+ "> + * paragraph) shall be included in all copies or substantial portions of the\n"
+ "> + * Software.\n"
+ "> + *\n"
+ "> + * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n"
+ "> + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n"
+ "> + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL\n"
+ "> + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n"
+ "> + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n"
+ "> + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n"
+ "> + * IN THE SOFTWARE.\n"
+ "> + *\n"
+ "> + * Author:\n"
+ "> + *    Rafael Antognolli <rafael.antognolli at intel.com>\n"
+ "> + *    Scott  Bauer      <scott.bauer at intel.com>\n"
+ "> + */\n"
+ "> +\n"
+ "> +#ifndef _NVME_OPAL_INTERNAL_H\n"
+ "> +#define _NVME_OPAL_INTERNAL_H\n"
+ "> +\n"
+ "> +#include <linux/key-type.h>\n"
+ "> +#include <keys/user-type.h>\n"
+ "> +\n"
+ "> +#define DTAERROR_NO_METHOD_STATUS 0x89\n"
+ "> +\n"
+ "> +static const char *opal_errors[19] = {\n"
+ "Remove the 19 so it's just opal_errors[] (doesnt silently truncate any\n"
+ "new additions)\n"
+ "\n"
+ "\n"
+ "> +\t\"Success\",\n"
+ "> +\t\"Not Authorized\",\n"
+ "> +\t\"Unknown Error\",\n"
+ "> +\t\"SP Busy\",\n"
+ "> +\t\"SP Failed\",\n"
+ "> +\t\"SP Disabled\",\n"
+ "> +\t\"SP Frozen\",\n"
+ "> +\t\"No Sessions Available\",\n"
+ "> +\t\"Uniqueness Conflict\",\n"
+ "> +\t\"Insufficient Space\",\n"
+ "> +\t\"Insufficient Rows\",\n"
+ "> +\t\"Invalid Function\",\n"
+ "> +\t\"Invalid Parameter\",\n"
+ "> +\t\"Invalid Reference\",\n"
+ "> +\t\"Unknown Error\",\n"
+ "> +\t\"TPER Malfunction\",\n"
+ "> +\t\"Transaction Failure\",\n"
+ "> +\t\"Response Overflow\",\n"
+ "> +\t\"Authority Locked Out\",\n"
+ "> +};\n"
+ "> +\n"
+ "> +static const char *opal_error_to_human(int error)\n"
+ "> +{\n"
+ "> +\tif (error == 0x3f)\n"
+ "> +\t\treturn \"Failed\";\n"
+ "> +\n"
+ "> +\tif (error >= sizeof(opal_errors) || error < 0)\n"
+ "You want sizeof(opal_errors)/sizeof(*opal_errors) here, but you can just\n"
+ "use the ARRAY_SIZE macro instead\n"
+ "\n"
+ "\n"
+ "> +\t\treturn \"Unknown Error\";\n"
+ "> +\n"
+ "> +\treturn opal_errors[error];\n"
+ "> +}\n"
+ "> +\n"
+ "> +/* User IDs used in the TCG storage SSCs */\n"
+ "> +static const u8 OPALUID[][8] = {\n"
+ "> +\t/* users */\n"
+ "> +\n"
+ "> +\t/* session management  */\n"
+ "> +\t{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff},\n"
+ "> +\t/* special \"thisSP\" syntax */\n"
+ "> +\t{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 },\n"
+ "> +\t/* Administrative SP */\n"
+ "> +\t{ 0x00, 0x00, 0x02, 0x05, 0x00, 0x00, 0x00, 0x01 },\n"
+ "> +\t/* Locking SP */\n"
+ "> +\t{ 0x00, 0x00, 0x02, 0x05, 0x00, 0x00, 0x00, 0x02 },\n"
+ "> +\t/* ENTERPRISE Locking SP  */\n"
+ "> +\t{ 0x00, 0x00, 0x02, 0x05, 0x00, 0x01, 0x00, 0x01 },\n"
+ "> +\t/* anybody */\n"
+ "> +\t{ 0x00, 0x00, 0x00, 0x09, 0x00, 0x00, 0x00, 0x01 },\n"
+ "> +\t/* SID */\n"
+ "> +\t{ 0x00, 0x00, 0x00, 0x09, 0x00, 0x00, 0x00, 0x06 },\n"
+ "> +\t/* ADMIN1 */\n"
+ "> +\t{ 0x00, 0x00, 0x00, 0x09, 0x00, 0x01, 0x00, 0x01 },\n"
+ "> +\t/* USER1 */\n"
+ "> +\t{ 0x00, 0x00, 0x00, 0x09, 0x00, 0x03, 0x00, 0x01 },\n"
+ "> +\t/* USER2 */\n"
+ "> +\t{ 0x00, 0x00, 0x00, 0x09, 0x00, 0x03, 0x00, 0x02 },\n"
+ "> +\t/* PSID user */\n"
+ "> +\t{ 0x00, 0x00, 0x00, 0x09, 0x00, 0x01, 0xff, 0x01 },\n"
+ "> +\t/* BandMaster 0 */\n"
+ "> +\t{ 0x00, 0x00, 0x00, 0x09, 0x00, 0x00, 0x80, 0x01 },\n"
+ "> +\t /* EraseMaster */\n"
+ "> +\t{ 0x00, 0x00, 0x00, 0x09, 0x00, 0x00, 0x84, 0x01 },\n"
+ "> +\n"
+ "> +\t/* tables */\n"
+ "> +\n"
+ "> +\t/* Locking_GlobalRange */\n"
+ "> +\t{ 0x00, 0x00, 0x08, 0x02, 0x00, 0x00, 0x00, 0x01 },\n"
+ "> +\t/* ACE_Locking_Range_Set_RdLocked UID */\n"
+ "> +\t{ 0x00, 0x00, 0x00, 0x08, 0x00, 0x03, 0xE0, 0x01 },\n"
+ "> +\t/* ACE_Locking_Range_Set_WrLocked UID */\n"
+ "> +\t{ 0x00, 0x00, 0x00, 0x08, 0x00, 0x03, 0xE8, 0x01 },\n"
+ "> +\t/* MBR Control */\n"
+ "> +\t{ 0x00, 0x00, 0x08, 0x03, 0x00, 0x00, 0x00, 0x01 },\n"
+ "> +\t/* Shadow MBR */\n"
+ "> +\t{ 0x00, 0x00, 0x08, 0x04, 0x00, 0x00, 0x00, 0x00 },\n"
+ "> +\t/* AUTHORITY_TABLE */\n"
+ "> +\t{ 0x00, 0x00, 0x00, 0x09, 0x00, 0x00, 0x00, 0x00},\n"
+ "> +\t/* C_PIN_TABLE */\n"
+ "> +\t{ 0x00, 0x00, 0x00, 0x0B, 0x00, 0x00, 0x00, 0x00},\n"
+ "> +\t/* OPAL Locking Info */\n"
+ "> +\t{ 0x00, 0x00, 0x08, 0x01, 0x00, 0x00, 0x00, 0x01 },\n"
+ "> +\t/* Enterprise Locking Info */\n"
+ "> +\t{ 0x00, 0x00, 0x08, 0x01, 0x00, 0x00, 0x00, 0x00 },\n"
+ "> +\n"
+ "> +\t/* C_PIN_TABLE object ID's */\n"
+ "> +\n"
+ "> +\t/* C_PIN_MSID */\n"
+ "> +\t{ 0x00, 0x00, 0x00, 0x0B, 0x00, 0x00, 0x84, 0x02},\n"
+ "> +\t/* C_PIN_SID */\n"
+ "> +\t{ 0x00, 0x00, 0x00, 0x0B, 0x00, 0x00, 0x00, 0x01},\n"
+ "> +\t /* C_PIN_ADMIN1 */\n"
+ "> +\t{ 0x00, 0x00, 0x00, 0x0B, 0x00, 0x01, 0x00, 0x01},\n"
+ "> +\n"
+ "> +\t/* half UID's (only first 4 bytes used) */\n"
+ "> +\n"
+ "> +\t/* Half-UID ? Authority_object_ref */\n"
+ "> +\t{ 0x00, 0x00, 0x0C, 0x05, 0xff, 0xff, 0xff, 0xff },\n"
+ "> +\t/* Half-UID ? Boolean ACE */\n"
+ "> +\t{ 0x00, 0x00, 0x04, 0x0E, 0xff, 0xff, 0xff, 0xff },\n"
+ "> +\n"
+ "> +\t/* special value for omitted optional parameter */\n"
+ "> +\n"
+ "> +\t/* HEXFF for omitted */\n"
+ "> +\t{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff},\n"
+ "> +};\n"
+ "> +static const size_t OPAL_UID_LENGTH = 8;\n"
+ "> +static const size_t OPAL_MSID_KEYLEN = 15;\n"
+ "> +static const size_t OPAL_UID_LENGTH_HALF = 4;\n"
+ "> +\n"
+ "> +\n"
+ "> +/* Enum to index OPALUID array */\n"
+ "> +enum OPAL_UID {\n"
+ "> +\t/* users */\n"
+ "> +\tOPAL_SMUID_UID,\n"
+ "> +\tOPAL_THISSP_UID,\n"
+ "> +\tOPAL_ADMINSP_UID,\n"
+ "> +\tOPAL_LOCKINGSP_UID,\n"
+ "> +\tOPAL_ENTERPRISE_LOCKINGSP_UID,\n"
+ "> +\tOPAL_ANYBODY_UID,\n"
+ "> +\tOPAL_SID_UID,\n"
+ "> +\tOPAL_ADMIN1_UID,\n"
+ "> +\tOPAL_USER1_UID,\n"
+ "> +\tOPAL_USER2_UID,\n"
+ "> +\tOPAL_PSID_UID,\n"
+ "> +\tOPAL_ENTERPRISE_BANDMASTER0_UID,\n"
+ "> +\tOPAL_ENTERPRISE_ERASEMASTER_UID,\n"
+ "> +\t/* tables */\n"
+ "> +\tOPAL_LOCKINGRANGE_GLOBAL,\n"
+ "> +\tOPAL_LOCKINGRANGE_ACE_RDLOCKED,\n"
+ "> +\tOPAL_LOCKINGRANGE_ACE_WRLOCKED,\n"
+ "> +\tOPAL_MBRCONTROL,\n"
+ "> +\tOPAL_MBR,\n"
+ "> +\tOPAL_AUTHORITY_TABLE,\n"
+ "> +\tOPAL_C_PIN_TABLE,\n"
+ "> +\tOPAL_LOCKING_INFO_TABLE,\n"
+ "> +\tOPAL_ENTERPRISE_LOCKING_INFO_TABLE,\n"
+ "> +\t/* C_PIN_TABLE object ID's */\n"
+ "> +\tOPAL_C_PIN_MSID,\n"
+ "> +\tOPAL_C_PIN_SID,\n"
+ "> +\tOPAL_C_PIN_ADMIN1,\n"
+ "> +\t/* half UID's (only first 4 bytes used) */\n"
+ "> +\tOPAL_HALF_UID_AUTHORITY_OBJ_REF,\n"
+ "> +\tOPAL_HALF_UID_BOOLEAN_ACE,\n"
+ "> +\t/* omitted optional parameter */\n"
+ "> +\tOPAL_UID_HEXFF,\n"
+ "> +};\n"
+ "> +\n"
+ "> +/*\n"
+ "> + * TCG Storage SSC Methods.\n"
+ "> + */\n"
+ "> +static const u8 OPALMETHOD[][8] = {\n"
+ "> +\t/* Properties */\n"
+ "> +\t{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x01 },\n"
+ "> +\t/* STARTSESSION */\n"
+ "> +\t{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x02 },\n"
+ "> +\t/* Revert */\n"
+ "> +\t{ 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x02, 0x02 },\n"
+ "> +\t/* Activate */\n"
+ "> +\t{ 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x02, 0x03 },\n"
+ "> +\t/* Enterprise Get */\n"
+ "> +\t{ 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x06 },\n"
+ "> +\t/* Enterprise Set */\n"
+ "> +\t{ 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x07 },\n"
+ "> +\t/* NEXT */\n"
+ "> +\t{ 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x08 },\n"
+ "> +\t/* Enterprise Authenticate */\n"
+ "> +\t{ 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x0c },\n"
+ "> +\t/* GetACL */\n"
+ "> +\t{ 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x0d },\n"
+ "> +\t/* GenKey */\n"
+ "> +\t{ 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x10 },\n"
+ "> +\t/* revertSP */\n"
+ "> +\t{ 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x11 },\n"
+ "> +\t/* Get */\n"
+ "> +\t{ 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x16 },\n"
+ "> +\t/* Set */\n"
+ "> +\t{ 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x17 },\n"
+ "> +\t/* Authenticate */\n"
+ "> +\t{ 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x1c },\n"
+ "> +\t/* Random */\n"
+ "> +\t{ 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x06, 0x01 },\n"
+ "> +\t/* Erase */\n"
+ "> +\t{ 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x08, 0x03 },\n"
+ "> +};\n"
+ "> +static const size_t OPAL_METHOD_LENGTH = 8;\n"
+ "> +\n"
+ "> +/* Enum for indexing the OPALMETHOD array */\n"
+ "> +enum OPAL_METHOD {\n"
+ "> +\tOPAL_PROPERTIES,\n"
+ "> +\tOPAL_STARTSESSION,\n"
+ "> +\tOPAL_REVERT,\n"
+ "> +\tOPAL_ACTIVATE,\n"
+ "> +\tOPAL_EGET,\n"
+ "> +\tOPAL_ESET,\n"
+ "> +\tOPAL_NEXT,\n"
+ "> +\tOPAL_EAUTHENTICATE,\n"
+ "> +\tOPAL_GETACL,\n"
+ "> +\tOPAL_GENKEY,\n"
+ "> +\tOPAL_REVERTSP,\n"
+ "> +\tOPAL_GET,\n"
+ "> +\tOPAL_SET,\n"
+ "> +\tOPAL_AUTHENTICATE,\n"
+ "> +\tOPAL_RANDOM,\n"
+ "> +\tOPAL_ERASE,\n"
+ "> +};\n"
+ "> +\n"
+ "> +enum OPAL_RESPONSE_TOKEN {\n"
+ "> +\tOPAL_DTA_TOKENID_BYTESTRING = 0xe0,\n"
+ "> +\tOPAL_DTA_TOKENID_SINT = 0xe1,\n"
+ "> +\tOPAL_DTA_TOKENID_UINT = 0xe2,\n"
+ "> +\tOPAL_DTA_TOKENID_TOKEN = 0xe3, /* actual token is returned */\n"
+ "> +\tOPAL_DTA_TOKENID_INVALID = 0X0\n"
+ "> +};\n"
+ "> +\n"
+ "> +enum OPAL_TOKEN {\n"
+ "> +\t/* Boolean */\n"
+ "> +\tOPAL_TRUE = 0x01,\n"
+ "> +\tOPAL_FALSE = 0x00,\n"
+ "> +\tOPAL_BOOLEAN_EXPR = 0x03,\n"
+ "> +\t/* cellblocks */\n"
+ "> +\tOPAL_TABLE = 0x00,\n"
+ "> +\tOPAL_STARTROW = 0x01,\n"
+ "> +\tOPAL_ENDROW = 0x02,\n"
+ "> +\tOPAL_STARTCOLUMN = 0x03,\n"
+ "> +\tOPAL_ENDCOLUMN = 0x04,\n"
+ "> +\tOPAL_VALUES = 0x01,\n"
+ "> +\t/* authority table */\n"
+ "> +\tOPAL_PIN = 0x03,\n"
+ "> +\t/* locking tokens */\n"
+ "> +\tOPAL_RANGESTART = 0x03,\n"
+ "> +\tOPAL_RANGELENGTH = 0x04,\n"
+ "> +\tOPAL_READLOCKENABLED = 0x05,\n"
+ "> +\tOPAL_WRITELOCKENABLED = 0x06,\n"
+ "> +\tOPAL_READLOCKED = 0x07,\n"
+ "> +\tOPAL_WRITELOCKED = 0x08,\n"
+ "> +\tOPAL_ACTIVEKEY = 0x0A,\n"
+ "> +\t/* locking info table */\n"
+ "> +\tOPAL_MAXRANGES = 0x04,\n"
+ "> +\t /* mbr control */\n"
+ "> +\tOPAL_MBRENABLE = 0x01,\n"
+ "> +\tOPAL_MBRDONE = 0x02,\n"
+ "> +\t/* properties */\n"
+ "> +\tOPAL_HOSTPROPERTIES = 0x00,\n"
+ "> +\t/* atoms */\n"
+ "> +\tOPAL_STARTLIST = 0xf0,\n"
+ "> +\tOPAL_ENDLIST = 0xf1,\n"
+ "> +\tOPAL_STARTNAME = 0xf2,\n"
+ "> +\tOPAL_ENDNAME = 0xf3,\n"
+ "> +\tOPAL_CALL = 0xf8,\n"
+ "> +\tOPAL_ENDOFDATA = 0xf9,\n"
+ "> +\tOPAL_ENDOFSESSION = 0xfa,\n"
+ "> +\tOPAL_STARTTRANSACTON = 0xfb,\n"
+ "> +\tOPAL_ENDTRANSACTON = 0xfC,\n"
+ "> +\tOPAL_EMPTYATOM = 0xff,\n"
+ "> +\tOPAL_WHERE = 0x00,\n"
+ "> +};\n"
+ "> +\n"
+ "> +/* Useful tiny atoms.\n"
+ "> + * Useful for table columns etc\n"
+ "> + */\n"
+ "> +enum OPAL_TINY_ATOM {\n"
+ "> +\tOPAL_TINY_UINT_00 = 0x00,\n"
+ "> +\tOPAL_TINY_UINT_01 = 0x01,\n"
+ "> +\tOPAL_TINY_UINT_02 = 0x02,\n"
+ "> +\tOPAL_TINY_UINT_03 = 0x03,\n"
+ "> +\tOPAL_TINY_UINT_04 = 0x04,\n"
+ "> +\tOPAL_TINY_UINT_05 = 0x05,\n"
+ "> +\tOPAL_TINY_UINT_06 = 0x06,\n"
+ "> +\tOPAL_TINY_UINT_07 = 0x07,\n"
+ "> +\tOPAL_TINY_UINT_08 = 0x08,\n"
+ "> +\tOPAL_TINY_UINT_09 = 0x09,\n"
+ "> +\tOPAL_TINY_UINT_10 = 0x0a,\n"
+ "> +\tOPAL_TINY_UINT_11 = 0x0b,\n"
+ "> +\tOPAL_TINY_UINT_12 = 0x0c,\n"
+ "> +\tOPAL_TINY_UINT_13 = 0x0d,\n"
+ "> +\tOPAL_TINY_UINT_14 = 0x0e,\n"
+ "> +\tOPAL_TINY_UINT_15 = 0x0f,\n"
+ "> +};\n"
+ "> +\n"
+ "> +enum OPAL_ATOM_WIDTH {\n"
+ "> +\tOPAL_WIDTH_TINY,\n"
+ "> +\tOPAL_WIDTH_SHORT,\n"
+ "> +\tOPAL_WIDTH_MEDIUM,\n"
+ "> +\tOPAL_WIDTH_LONG,\n"
+ "> +\tOPAL_WIDTH_TOKEN\n"
+ "> +};\n"
+ "> +\n"
+ "> +/* Locking state for a locking range */\n"
+ "> +enum OPAL_LOCKINGSTATE {\n"
+ "> +\tOPAL_LOCKING_READWRITE = 0x01,\n"
+ "> +\tOPAL_LOCKING_READONLY = 0x02,\n"
+ "> +\tOPAL_LOCKING_LOCKED = 0x03,\n"
+ "> +};\n"
+ "> +\n"
+ "> +/*\n"
+ "> + * Structures to build and decode the Opal SSC messages\n"
+ "> + * fields that are NOT really numeric are defined as u8[] to\n"
+ "> + * help reduce the endianness issues\n"
+ "> + */\n"
+ "> +\n"
+ "> +/* Comm Packet (header) for transmissions. */\n"
+ "> +struct opal_compacket {\n"
+ "> +\tu32 reserved0;\n"
+ "> +\tu8 extendedComID[4];\n"
+ "> +\tu32 outstandingData;\n"
+ "> +\tu32 minTransfer;\n"
+ "> +\tu32 length;\n"
+ "> +};\n"
+ "> +\n"
+ "> +/* Packet structure. */\n"
+ "> +struct opal_packet {\n"
+ "> +\tu32 TSN;\n"
+ "> +\tu32 HSN;\n"
+ "> +\tu32 seq_number;\n"
+ "> +\tu16 reserved0;\n"
+ "> +\tu16 ack_type;\n"
+ "> +\tu32 acknowledgment;\n"
+ "> +\tu32 length;\n"
+ "> +};\n"
+ "> +\n"
+ "> +/* Data sub packet header */\n"
+ "> +struct opal_data_subpacket {\n"
+ "> +\tu8 reserved0[6];\n"
+ "> +\tu16 kind;\n"
+ "> +\tu32 length;\n"
+ "> +};\n"
+ "> +\n"
+ "> +/* header of a response */\n"
+ "> +struct opal_header {\n"
+ "> +\tstruct opal_compacket cp;\n"
+ "> +\tstruct opal_packet pkt;\n"
+ "> +\tstruct opal_data_subpacket subpkt;\n"
+ "> +};\n"
+ "> +\n"
+ "> +#define FC_TPER       0x0001\n"
+ "> +#define FC_LOCKING    0x0002\n"
+ "> +#define FC_GEOMETRY   0x0003\n"
+ "> +#define FC_ENTERPRISE 0x0100\n"
+ "> +#define FC_DATASTORE  0x0202\n"
+ "> +#define FC_SINGLEUSER 0x0201\n"
+ "> +#define FC_OPALV100   0x0200\n"
+ "> +#define FC_OPALV200   0x0203\n"
+ "> +\n"
+ "> +/*\n"
+ "> + * The Discovery 0 Header. As defined in\n"
+ "> + * Opal SSC Documentation\n"
+ "> + */\n"
+ "> +struct d0_header {\n"
+ "> +\tu32 length; /* the length of the header 48 in 2.00.100 */\n"
+ "> +\tu32 revision; /**< revision of the header 1 in 2.00.100 */\n"
+ "> +\tu32 reserved01;\n"
+ "> +\tu32 reserved02;\n"
+ "> +\t/*\n"
+ "> +\t * the remainder of the structure is vendor specific and will not be\n"
+ "> +\t * addressed now\n"
+ "> +\t */\n"
+ "> +\tu8 ignored[32];\n"
+ "> +};\n"
+ "> +\n"
+ "> +/*\n"
+ "> + * TPer Feature Descriptor. Contains flags indicating support for the\n"
+ "> + * TPer features described in the OPAL specification. The names match the\n"
+ "> + * OPAL terminology\n"
+ "> + *\n"
+ "> + * code == 0x001 in 2.00.100\n"
+ "> + */\n"
+ "> +struct d0_tper_features {\n"
+ "> +\t/*\n"
+ "> +\t * supported_features bits:\n"
+ "> +\t * bit 7: reserved\n"
+ "> +\t * bit 6: com ID management\n"
+ "> +\t * bit 5: reserved\n"
+ "> +\t * bit 4: streaming support\n"
+ "> +\t * bit 3: buffer management\n"
+ "> +\t * bit 2: ACK/NACK\n"
+ "> +\t * bit 1: async\n"
+ "> +\t * bit 0: sync\n"
+ "> +\t */\n"
+ "> +\tu8 supported_features;\n"
+ "> +\t/*\n"
+ "> +\t * bytes 5 through 15 are reserved, but we represent the first 3 as\n"
+ "> +\t * u8 to keep the other two 32bits integers aligned.\n"
+ "> +\t */\n"
+ "> +\tu8 reserved01[3];\n"
+ "> +\tu32 reserved02;\n"
+ "> +\tu32 reserved03;\n"
+ "> +};\n"
+ "> +\n"
+ "> +/*\n"
+ "> + * Locking Feature Descriptor. Contains flags indicating support for the\n"
+ "> + * locking features described in the OPAL specification. The names match the\n"
+ "> + * OPAL terminology\n"
+ "> + *\n"
+ "> + * code == 0x0002 in 2.00.100\n"
+ "> + */\n"
+ "> +struct d0_locking_features {\n"
+ "> +\t/*\n"
+ "> +\t * supported_features bits:\n"
+ "> +\t * bits 6-7: reserved\n"
+ "> +\t * bit 5: MBR done\n"
+ "> +\t * bit 4: MBR enabled\n"
+ "> +\t * bit 3: media encryption\n"
+ "> +\t * bit 2: locked\n"
+ "> +\t * bit 1: locking enabled\n"
+ "> +\t * bit 0: locking supported\n"
+ "> +\t */\n"
+ "> +\tu8 supported_features;\n"
+ "> +\t/*\n"
+ "> +\t * bytes 5 through 15 are reserved, but we represent the first 3 as\n"
+ "> +\t * u8 to keep the other two 32bits integers aligned.\n"
+ "> +\t */\n"
+ "> +\tu8 reserved01[3];\n"
+ "> +\tu32 reserved02;\n"
+ "> +\tu32 reserved03;\n"
+ "> +};\n"
+ "> +\n"
+ "> +/*\n"
+ "> + * Geometry Feature Descriptor. Contains flags indicating support for the\n"
+ "> + * geometry features described in the OPAL specification. The names match the\n"
+ "> + * OPAL terminology\n"
+ "> + *\n"
+ "> + * code == 0x0003 in 2.00.100\n"
+ "> + */\n"
+ "> +struct d0_geometry_features {\n"
+ "> +\t/*\n"
+ "> +\t * skip 32 bits from header, needed to align the struct to 64 bits.\n"
+ "> +\t */\n"
+ "> +\tu8 header[4];\n"
+ "> +\t/*\n"
+ "> +\t * reserved01:\n"
+ "> +\t * bits 1-6: reserved\n"
+ "> +\t * bit 0: align\n"
+ "> +\t */\n"
+ "> +\tu8 reserved01;\n"
+ "> +\tu8 reserved02[7];\n"
+ "> +\tu32 logical_block_size;\n"
+ "> +\tu64 alignment_granularity;\n"
+ "> +\tu64 lowest_aligned_lba;\n"
+ "> +};\n"
+ "> +\n"
+ "> +/*\n"
+ "> + * Enterprise SSC Feature\n"
+ "> + *\n"
+ "> + * code == 0x0100\n"
+ "> + */\n"
+ "> +struct d0_enterprise_ssc {\n"
+ "> +\tu16 baseComID;\n"
+ "> +\tu16 numComIDs;\n"
+ "> +\t/* range_crossing:\n"
+ "> +\t * bits 1-6: reserved\n"
+ "> +\t * bit 0: range crossing\n"
+ "> +\t */\n"
+ "> +\tu8 range_crossing;\n"
+ "> +\tu8 reserved01;\n"
+ "> +\tu16 reserved02;\n"
+ "> +\tu32 reserved03;\n"
+ "> +\tu32 reserved04;\n"
+ "> +};\n"
+ "> +\n"
+ "> +/*\n"
+ "> + * Opal V1 feature\n"
+ "> + *\n"
+ "> + * code == 0x0200\n"
+ "> + */\n"
+ "> +struct d0_opal_v100 {\n"
+ "> +\tu16 baseComID;\n"
+ "> +\tu16 numComIDs;\n"
+ "> +};\n"
+ "> +\n"
+ "> +/*\n"
+ "> + * Single User Mode feature\n"
+ "> + *\n"
+ "> + * code == 0x0201\n"
+ "> + */\n"
+ "> +struct d0_single_user_mode {\n"
+ "> +\tu32 num_locking_objects;\n"
+ "> +\t/* reserved01:\n"
+ "> +\t * bit 0: any\n"
+ "> +\t * bit 1: all\n"
+ "> +\t * bit 2: policy\n"
+ "> +\t * bits 3-7: reserved\n"
+ "> +\t */\n"
+ "> +\tu8 reserved01;\n"
+ "> +\tu8 reserved02;\n"
+ "> +\tu16 reserved03;\n"
+ "> +\tu32 reserved04;\n"
+ "> +};\n"
+ "> +\n"
+ "> +/*\n"
+ "> + * Additonal Datastores feature\n"
+ "> + *\n"
+ "> + * code == 0x0202\n"
+ "> + */\n"
+ "> +struct d0_datastore_table {\n"
+ "> +\tu16 reserved01;\n"
+ "> +\tu16 max_tables;\n"
+ "> +\tu32 max_size_tables;\n"
+ "> +\tu32 table_size_alignment;\n"
+ "> +};\n"
+ "> +\n"
+ "> +/*\n"
+ "> + * OPAL 2.0 feature\n"
+ "> + *\n"
+ "> + * code == 0x0203\n"
+ "> + */\n"
+ "> +struct d0_opal_v200 {\n"
+ "> +\tu16 baseComID;\n"
+ "> +\tu16 numComIDs;\n"
+ "> +\t/* range_crossing:\n"
+ "> +\t * bits 1-6: reserved\n"
+ "> +\t * bit 0: range crossing\n"
+ "> +\t */\n"
+ "> +\tu8 range_crossing;\n"
+ "> +\t/* num_locking_admin_auth:\n"
+ "> +\t * not aligned to 16 bits, so use two u8.\n"
+ "> +\t * stored in big endian:\n"
+ "> +\t * 0: MSB\n"
+ "> +\t * 1: LSB\n"
+ "> +\t */\n"
+ "> +\tu8 num_locking_admin_auth[2];\n"
+ "> +\t/* num_locking_user_auth:\n"
+ "> +\t * not aligned to 16 bits, so use two u8.\n"
+ "> +\t * stored in big endian:\n"
+ "> +\t * 0: MSB\n"
+ "> +\t * 1: LSB\n"
+ "> +\t */\n"
+ "> +\tu8 num_locking_user_auth[2];\n"
+ "> +\tu8 initialPIN;\n"
+ "> +\tu8 revertedPIN;\n"
+ "> +\tu8 reserved01;\n"
+ "> +\tu32 reserved02;\n"
+ "> +};\n"
+ "> +\n"
+ "> +/* Union of features used to parse the discovery 0 response */\n"
+ "> +struct d0_features {\n"
+ "> +\tu16 code;\n"
+ "> +\t/*\n"
+ "> +\t * r_version bits:\n"
+ "> +\t * bits 4-7: version\n"
+ "> +\t * bits 0-3: reserved\n"
+ "> +\t */\n"
+ "> +\tu8 r_version;\n"
+ "> +\tu8 length;\n"
+ "> +\tu8 features[];\n"
+ "> +};\n"
+ "> +\n"
+ "> +struct key *request_user_key(const char *master_desc, const u8 **master_key,\n"
+ "> +\t\t\t     size_t *master_keylen);\n"
+ "> +\n"
+ "> +#endif /* _NVME_OPAL_INTERNAL_H */\n"
+ "> diff --git a/lib/sed-opal_key.c b/lib/sed-opal_key.c\n"
+ "> new file mode 100644\n"
+ "> index 0000000..0b4de01\n"
+ "> --- /dev/null\n"
+ "> +++ b/lib/sed-opal_key.c\n"
+ "> @@ -0,0 +1,46 @@\n"
+ "> +/*\n"
+ "> + * Copyright ? 2016 Intel Corporation\n"
+ "> + *\n"
+ "> + * Permission is hereby granted, free of charge, to any person obtaining a\n"
+ "> + * copy of this software and associated documentation files (the \"Software\"),\n"
+ "> + * to deal in the Software without restriction, including without limitation\n"
+ "> + * the rights to use, copy, modify, merge, publish, distribute, sublicense,\n"
+ "> + * and/or sell copies of the Software, and to permit persons to whom the\n"
+ "> + * Software is furnished to do so, subject to the following conditions:\n"
+ "> + *\n"
+ "> + * The above copyright notice and this permission notice (including the next\n"
+ "> + * paragraph) shall be included in all copies or substantial portions of the\n"
+ "> + * Software.\n"
+ "> + *\n"
+ "> + * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n"
+ "> + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n"
+ "> + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL\n"
+ "> + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n"
+ "> + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n"
+ "> + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n"
+ "> + * IN THE SOFTWARE.\n"
+ "> + *\n"
+ "> + * Author:\n"
+ "> + *    Rafael Antognolli <rafael.antognolli at intel.com>\n"
+ "> + */\n"
+ "> +\n"
+ "> +#include <linux/key.h>\n"
+ "> +#include \"sed-opal_internal.h\"\n"
+ "> +\n"
+ "> +struct key *request_user_key(const char *master_desc, const u8 **master_key,\n"
+ "> +\t\t\t     size_t *master_keylen)\n"
+ "> +{\n"
+ "> +\tconst struct user_key_payload *upayload;\n"
+ "> +\tstruct key *ukey;\n"
+ "> +\n"
+ "> +\tukey = request_key(&key_type_user, master_desc, NULL);\n"
+ "> +\tif (IS_ERR(ukey))\n"
+ "> +\t\tgoto error;\n"
+ "> +\n"
+ "> +\tdown_read(&ukey->sem);\n"
+ "> +\tupayload = user_key_payload(ukey);\n"
+ "> +\t*master_key = upayload->data;\n"
+ "> +\t*master_keylen = upayload->datalen;\n"
+ "> +error:\n"
+ "> +\treturn ukey;\n"
+ "> +}\n"
+ "> diff --git a/lib/sed.c b/lib/sed.c\n"
+ "> new file mode 100644\n"
+ "> index 0000000..06cacd9\n"
+ "> --- /dev/null\n"
+ "> +++ b/lib/sed.c\n"
+ "> @@ -0,0 +1,303 @@\n"
+ "> +#include <linux/blkdev.h>\n"
+ "> +#include <linux/sed.h>\n"
+ "> +#include <linux/sed-opal.h>\n"
+ "> +\n"
+ "> +#ifndef CONFIG_SED_OPAL\n"
+ "> +static int sed_opal_save(struct block_device *bdev, struct sed_key *sed)\n"
+ "> +\t{ return -EOPNOTSUPP; }\n"
+ "> +static int sed_opal_lock_unlock(struct block_device *bdev, struct sed_key *key)\n"
+ "> +\t{ return -EOPNOTSUPP; }\n"
+ "> +static int sed_opal_take_ownership(struct block_device *bdev, struct sed_key *key)\n"
+ "> +\t{ return -EOPNOTSUPP; }\n"
+ "> +static int sed_opal_activate_lsp(struct block_device *bdev, struct sed_key *key)\n"
+ "> +\t{ return -EOPNOTSUPP; }\n"
+ "> +static int sed_opal_set_pw(struct block_device *bdev, struct sed_key *key)\n"
+ "> +\t{ return -EOPNOTSUPP; }\n"
+ "> +static int sed_opal_activate_user(struct block_device *bdev, struct sed_key *key)\n"
+ "> +\t{ return -EOPNOTSUPP; }\n"
+ "> +static int sed_opal_reverttper(struct block_device *bdev, struct sed_key *key)\n"
+ "> +\t{ return -EOPNOTSUPP; }\n"
+ "> +static int sed_opal_setup_locking_range(struct block_device *bdev, struct sed_key *key)\n"
+ "> +\t{ return -EOPNOTSUPP; }\n"
+ "> +static int sed_opal_adduser_to_lr(struct block_device *bdev, struct sed_key *key)\n"
+ "> +\t{ return -EOPNOTSUPP; }\n"
+ "> +static int sed_opal_do_mbr(struct block_device *bdev, struct sed_key *key)\n"
+ "> +\t{ return -EOPNOTSUPP; }\n"
+ "> +static int sed_opal_erase_lr(struct block_device *bdev, struct sed_key *key)\n"
+ "> +\t{ return -EOPNOTSUPP; }\n"
+ "> +\n"
+ "> +#else\n"
+ "> +\n"
+ "> +static int sed_opal_save(struct block_device *bdev, struct sed_key *key)\n"
+ "> +{\n"
+ "> +\n"
+ "> +\tif (!bdev || !bdev->bd_disk || !bdev->bd_disk->fops ||\n"
+ "> +\t    !bdev->bd_disk->fops->sec_ops)\n"
+ "> +\t\treturn -EOPNOTSUPP;\n"
+ "You might consider pulling this boilerplate out into something like:\n"
+ "static inline bool bdev_sec_capable(struct block_device *bdev)\n"
+ "{\n"
+ "\treturn bdev && bdev->bd_disk && bdev->bd_disk->fops &&\n"
+ "\t       bdev->bd_disk->fops->sec_ops;\n"
+ "}\n"
+ "\n"
+ "\n"
+ "> +\n"
+ "> +\treturn opal_save(bdev, key);\n"
+ "> +}\n"
+ "> +\n"
+ "> +static int sed_opal_lock_unlock(struct block_device *bdev, struct sed_key *key)\n"
+ "> +{\n"
+ "> +\n"
+ "> +\tif (!bdev || !bdev->bd_disk || !bdev->bd_disk->fops ||\n"
+ "> +\t    !bdev->bd_disk->fops->sec_ops)\n"
+ "> +\t\treturn -EOPNOTSUPP;\n"
+ "> +\n"
+ "> +\treturn opal_lock_unlock(bdev, key);\n"
+ "> +}\n"
+ "> +\n"
+ "> +static int sed_opal_take_ownership(struct block_device *bdev,\n"
+ "> +\t\t\t\t   struct sed_key *key)\n"
+ "> +{\n"
+ "> +\n"
+ "> +\tif (!bdev || !bdev->bd_disk || !bdev->bd_disk->fops ||\n"
+ "> +\t    !bdev->bd_disk->fops->sec_ops)\n"
+ "> +\t\treturn -EOPNOTSUPP;\n"
+ "> +\n"
+ "> +\treturn opal_take_ownership(bdev, key);\n"
+ "> +}\n"
+ "> +\n"
+ "> +static int sed_opal_activate_lsp(struct block_device *bdev,\n"
+ "> +\t\t\t\t struct sed_key *key)\n"
+ "> +{\n"
+ "> +\n"
+ "> +\tif (!bdev || !bdev->bd_disk || !bdev->bd_disk->fops ||\n"
+ "> +\t    !bdev->bd_disk->fops->sec_ops)\n"
+ "> +\t\treturn -EOPNOTSUPP;\n"
+ "> +\n"
+ "> +\treturn opal_activate_lsp(bdev, key);\n"
+ "> +}\n"
+ "> +\n"
+ "> +static int sed_opal_set_pw(struct block_device *bdev,\n"
+ "> +\t\t\t   struct sed_key *key)\n"
+ "> +{\n"
+ "> +\n"
+ "> +\tif (!bdev || !bdev->bd_disk || !bdev->bd_disk->fops ||\n"
+ "> +\t    !bdev->bd_disk->fops->sec_ops)\n"
+ "> +\t\treturn -EOPNOTSUPP;\n"
+ "> +\n"
+ "> +\treturn opal_set_new_pw(bdev, key);\n"
+ "> +}\n"
+ "> +\n"
+ "> +static int sed_opal_activate_user(struct block_device *bdev,\n"
+ "> +\t\t\t\t  struct sed_key *key)\n"
+ "> +{\n"
+ "> +\n"
+ "> +\tif (!bdev || !bdev->bd_disk || !bdev->bd_disk->fops ||\n"
+ "> +\t    !bdev->bd_disk->fops->sec_ops)\n"
+ "> +\t\treturn -EOPNOTSUPP;\n"
+ "> +\n"
+ "> +\treturn opal_activate_user(bdev, key);\n"
+ "> +}\n"
+ "> +\n"
+ "> +static int sed_opal_reverttper(struct block_device *bdev,\n"
+ "> +\t\t\t       struct sed_key *key)\n"
+ "> +{\n"
+ "> +\n"
+ "> +\tif (!bdev || !bdev->bd_disk || !bdev->bd_disk->fops ||\n"
+ "> +\t    !bdev->bd_disk->fops->sec_ops)\n"
+ "> +\t\treturn -EOPNOTSUPP;\n"
+ "> +\n"
+ "> +\treturn opal_reverttper(bdev, key);\n"
+ "> +}\n"
+ "> +\n"
+ "> +static int sed_opal_setup_lr(struct block_device *bdev,\n"
+ "> +\t\t\t     struct sed_key *key)\n"
+ "> +{\n"
+ "> +\n"
+ "> +\tif (!bdev || !bdev->bd_disk || !bdev->bd_disk->fops ||\n"
+ "> +\t    !bdev->bd_disk->fops->sec_ops)\n"
+ "> +\t\treturn -EOPNOTSUPP;\n"
+ "> +\n"
+ "> +\treturn opal_setup_locking_range(bdev, key);\n"
+ "> +}\n"
+ "> +\n"
+ "> +static int sed_opal_adduser_to_lr(struct block_device *bdev,\n"
+ "> +\t\t\t     struct sed_key *key)\n"
+ "> +{\n"
+ "> +\n"
+ "> +\tif (!bdev || !bdev->bd_disk || !bdev->bd_disk->fops ||\n"
+ "> +\t    !bdev->bd_disk->fops->sec_ops)\n"
+ "> +\t\treturn -EOPNOTSUPP;\n"
+ "> +\n"
+ "> +\treturn opal_add_user_to_lr(bdev, key);\n"
+ "> +}\n"
+ "> +\n"
+ "> +static int sed_opal_do_mbr(struct block_device *bdev,\n"
+ "> +\t\t\t   struct sed_key *key)\n"
+ "> +{\n"
+ "> +\n"
+ "> +\tif (!bdev || !bdev->bd_disk || !bdev->bd_disk->fops ||\n"
+ "> +\t    !bdev->bd_disk->fops->sec_ops)\n"
+ "> +\t\treturn -EOPNOTSUPP;\n"
+ "> +\n"
+ "> +\treturn opal_enable_disable_shadow_mbr(bdev, key);\n"
+ "> +}\n"
+ "> +\n"
+ "> +static int sed_opal_erase_lr(struct block_device *bdev,\n"
+ "> +\t\t\t     struct sed_key *key)\n"
+ "> +{\n"
+ "> +\n"
+ "> +\tif (!bdev || !bdev->bd_disk || !bdev->bd_disk->fops ||\n"
+ "> +\t    !bdev->bd_disk->fops->sec_ops)\n"
+ "> +\t\treturn -EOPNOTSUPP;\n"
+ "> +\n"
+ "> +\treturn opal_erase_locking_range(bdev, key);\n"
+ "> +}\n"
+ "> +#endif\n"
+ "> +\n"
+ "> +int sed_save(struct block_device *bdev, struct sed_key *key)\n"
+ "> +{\n"
+ "> +\tif (!bdev || !bdev->bd_disk || !bdev->bd_disk->fops ||\n"
+ "> +\t    !bdev->bd_disk->fops->sec_ops)\n"
+ "> +\t\treturn -EOPNOTSUPP;\n"
+ "> +\n"
+ "> +\tswitch (key->sed_type) {\n"
+ "> +\tcase OPAL_LOCK_UNLOCK:\n"
+ "> +\t\treturn sed_opal_save(bdev, key);\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\treturn -EOPNOTSUPP;\n"
+ "> +}\n"
+ "> +\n"
+ "> +int sed_lock_unlock(struct block_device *bdev, struct sed_key *key)\n"
+ "> +{\n"
+ "> +\tif (!bdev || !bdev->bd_disk || !bdev->bd_disk->fops ||\n"
+ "> +\t    !bdev->bd_disk->fops->sec_ops)\n"
+ "> +\t\treturn -EOPNOTSUPP;\n"
+ "> +\n"
+ "> +\tswitch (key->sed_type) {\n"
+ "> +\tcase OPAL_LOCK_UNLOCK:\n"
+ "> +\t\treturn sed_opal_lock_unlock(bdev, key);\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\treturn -EOPNOTSUPP;\n"
+ "> +}\n"
+ "> +\n"
+ "> +int sed_take_ownership(struct block_device *bdev, struct sed_key *key)\n"
+ "> +{\n"
+ "> +\tif (!bdev || !bdev->bd_disk || !bdev->bd_disk->fops ||\n"
+ "> +\t    !bdev->bd_disk->fops->sec_ops)\n"
+ "> +\t\treturn -EOPNOTSUPP;\n"
+ "> +\n"
+ "> +\tswitch (key->sed_type) {\n"
+ "> +\tcase OPAL:\n"
+ "> +\t\treturn sed_opal_take_ownership(bdev, key);\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\treturn -EOPNOTSUPP;\n"
+ "> +}\n"
+ "> +\n"
+ "> +int sed_activate_lsp(struct block_device *bdev, struct sed_key *key)\n"
+ "> +{\n"
+ "> +\tif (!bdev || !bdev->bd_disk || !bdev->bd_disk->fops ||\n"
+ "> +\t    !bdev->bd_disk->fops->sec_ops)\n"
+ "> +\t\treturn -EOPNOTSUPP;\n"
+ "> +\n"
+ "> +\tswitch (key->sed_type) {\n"
+ "> +\tcase OPAL:\n"
+ "> +\t\treturn sed_opal_activate_lsp(bdev, key);\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\treturn -EOPNOTSUPP;\n"
+ "> +}\n"
+ "> +\n"
+ "> +int sed_set_pw(struct block_device *bdev, struct sed_key *key)\n"
+ "> +{\n"
+ "> +\tif (!bdev || !bdev->bd_disk || !bdev->bd_disk->fops ||\n"
+ "> +\t    !bdev->bd_disk->fops->sec_ops)\n"
+ "> +\t\treturn -EOPNOTSUPP;\n"
+ "> +\n"
+ "> +\tswitch (key->sed_type) {\n"
+ "> +\tcase OPAL_PW:\n"
+ "> +\t\treturn sed_opal_set_pw(bdev, key);\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\treturn -EOPNOTSUPP;\n"
+ "> +}\n"
+ "> +\n"
+ "> +int sed_activate_user(struct block_device *bdev, struct sed_key *key)\n"
+ "> +{\n"
+ "> +\tif (!bdev || !bdev->bd_disk || !bdev->bd_disk->fops ||\n"
+ "> +\t    !bdev->bd_disk->fops->sec_ops)\n"
+ "> +\t\treturn -EOPNOTSUPP;\n"
+ "> +\n"
+ "> +\tswitch (key->sed_type) {\n"
+ "> +\tcase OPAL_ACT_USR:\n"
+ "> +\t\treturn sed_opal_activate_user(bdev, key);\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\treturn -EOPNOTSUPP;\n"
+ "> +}\n"
+ "> +\n"
+ "> +int sed_reverttper(struct block_device *bdev, struct sed_key *key)\n"
+ "> +{\n"
+ "> +\tif (!bdev || !bdev->bd_disk || !bdev->bd_disk->fops ||\n"
+ "> +\t    !bdev->bd_disk->fops->sec_ops)\n"
+ "> +\t\treturn -EOPNOTSUPP;\n"
+ "> +\n"
+ "> +\tswitch (key->sed_type) {\n"
+ "> +\tcase OPAL:\n"
+ "> +\t\treturn sed_opal_reverttper(bdev, key);\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\treturn -EOPNOTSUPP;\n"
+ "> +}\n"
+ "> +\n"
+ "> +int sed_setup_locking_range(struct block_device *bdev, struct sed_key *key)\n"
+ "> +{\n"
+ "> +\tif (!bdev || !bdev->bd_disk || !bdev->bd_disk->fops ||\n"
+ "> +\t    !bdev->bd_disk->fops->sec_ops)\n"
+ "> +\t\treturn -EOPNOTSUPP;\n"
+ "> +\n"
+ "> +\tswitch (key->sed_type) {\n"
+ "> +\tcase OPAL_LR_SETUP:\n"
+ "> +\t\treturn sed_opal_setup_lr(bdev, key);\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\treturn -EOPNOTSUPP;\n"
+ "> +}\n"
+ "> +\n"
+ "> +int sed_adduser_to_lr(struct block_device *bdev, struct sed_key *key)\n"
+ "> +{\n"
+ "> +\tif (!bdev || !bdev->bd_disk || !bdev->bd_disk->fops ||\n"
+ "> +\t    !bdev->bd_disk->fops->sec_ops)\n"
+ "> +\t\treturn -EOPNOTSUPP;\n"
+ "> +\n"
+ "> +\tswitch (key->sed_type) {\n"
+ "> +\tcase OPAL_LOCK_UNLOCK:\n"
+ "> +\t\treturn sed_opal_adduser_to_lr(bdev, key);\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\treturn -EOPNOTSUPP;\n"
+ "> +}\n"
+ "> +\n"
+ "> +int sed_do_mbr(struct block_device *bdev, struct sed_key *key)\n"
+ "> +{\n"
+ "> +\tif (!bdev || !bdev->bd_disk || !bdev->bd_disk->fops ||\n"
+ "> +\t    !bdev->bd_disk->fops->sec_ops)\n"
+ "> +\t\treturn -EOPNOTSUPP;\n"
+ "> +\n"
+ "> +\tswitch (key->sed_type) {\n"
+ "> +\tcase OPAL_MBR_DATA:\n"
+ "> +\t\treturn sed_opal_do_mbr(bdev, key);\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\treturn -EOPNOTSUPP;\n"
+ "> +}\n"
+ "> +\n"
+ "> +int sed_erase_lr(struct block_device *bdev, struct sed_key *key)\n"
+ "> +{\n"
+ "> +\tif (!bdev || !bdev->bd_disk || !bdev->bd_disk->fops ||\n"
+ "> +\t    !bdev->bd_disk->fops->sec_ops)\n"
+ "> +\t\treturn -EOPNOTSUPP;\n"
+ "> +\n"
+ "> +\tswitch (key->sed_type) {\n"
+ "> +\tcase OPAL:\n"
+ "> +\t\treturn sed_opal_erase_lr(bdev, key);\n"
+ "> +\t}\n"
+ "> +\n"
+ "> +\treturn -EOPNOTSUPP;\n"
+ "> +}\n"
+ "> -- \n"
+ "> 2.7.4\n"
+ >
 
-62cf4897561e4d8b58790969c0fea5a770d1084ea226a7cbca291bc8e7564116
+78cf69019b1ed9a92cb63b1fc5031e1d930afeabe0583451d3c08980d0d5254b

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