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Commit 2ec53eb4 authored by Dave Jiang's avatar Dave Jiang Committed by Dan Williams
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isci: Fixup of smp request 

The struct smp_request data structure has be fixed up for Linux consumption.
This probably should go to scsi/sas.h eventually.
Signed-off-by: default avatarDave Jiang <dave.jiang@intel.com>
Signed-off-by: default avatarDan Williams <dan.j.williams@intel.com>
parent af5ae893
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Showing with 196 additions and 260 deletions
drivers/scsi/isci/core/intel_sas.h
View file @ 2ec53eb4
......@@ -198,20 +198,6 @@ struct sci_ssp_frame_header {
};
/**
* struct smp_request_header - This structure defines the contents of an SMP
* Request header.
*
* For specific information on each of these individual fields please reference
* the SAS specification.
*/
struct smp_request_header {
u8 smp_frame_type; /* byte 0 */
u8 function; /* byte 1 */
u8 allocated_response_length; /* byte 2 */
u8 request_length; /* byte 3 */
};
/**
* struct smp_response_header - This structure depicts the contents of the SAS
* SMP DISCOVER RESPONSE frame. For specific information on each of these
......@@ -227,136 +213,6 @@ struct smp_response_header {
u8 response_length; /* byte 3 */
};
/**
* struct smp_request_general - This structure defines the contents of an SMP
* Request that is comprised of the struct smp_request_header and a CRC.
*
* For specific information on each of these individual fields please reference
* the SAS specification.
*/
struct smp_request_general {
u32 crc; /* bytes 4-7 */
};
/**
* struct smp_request_phy_identifier - This structure defines the contents of
* an SMP Request that is comprised of the struct smp_request_header and a phy
* identifier. Examples: SMP_REQUEST_DISCOVER, SMP_REQUEST_REPORT_PHY_SATA.
*
* For specific information on each of these individual fields please reference
* the SAS specification.
*/
struct smp_request_phy_identifier {
u32 reserved_byte4_7; /* bytes 4-7 */
u32 ignore_zone_group:1; /* byte 8 */
u32 reserved_byte8:7;
u32 phy_identifier:8; /* byte 9 */
u32 reserved_byte10:8; /* byte 10 */
u32 reserved_byte11:8; /* byte 11 */
};
/**
* struct smp_request_configure_route_information - This structure defines the
* contents of an SMP Configure Route Information request.
*
* For specific information on each of these individual fields please reference
* the SAS specification.
*/
struct smp_request_configure_route_information {
u32 expected_expander_change_count:16; /* bytes 4-5 */
u32 expander_route_index_high:8;
u32 expander_route_index:8; /* bytes 6-7 */
u32 reserved_byte8:8; /* bytes 8 */
u32 phy_identifier:8; /* bytes 9 */
u32 reserved_byte_10_11:16; /* bytes 10-11 */
u32 reserved_byte_12_bit_0_6:7;
u32 disable_route_entry:1; /* byte 12 */
u32 reserved_byte_13_15:24; /* bytes 13-15 */
u32 routed_sas_address[2]; /* bytes 16-23 */
u8 reserved_byte_24_39[16]; /* bytes 24-39 */
};
/**
* struct smp_request_phy_control - This structure defines the contents of an
* SMP Phy Controler request.
*
* For specific information on each of these individual fields please reference
* the SAS specification.
*/
struct smp_request_phy_control {
u16 expected_expander_change_count; /* byte 4-5 */
u16 reserved_byte_6_7; /* byte 6-7 */
u8 reserved_byte_8; /* byte 8 */
u8 phy_identifier; /* byte 9 */
u8 phy_operation; /* byte 10 */
u8 update_partial_pathway_timeout_value:1;
u8 reserved_byte_11_bit_1_7:7; /* byte 11 */
u8 reserved_byte_12_23[12]; /* byte 12-23 */
u8 attached_device_name[8]; /* byte 24-31 */
u8 reserved_byte_32_bit_3_0:4; /* byte 32 */
u8 programmed_minimum_physical_link_rate:4;
u8 reserved_byte_33_bit_3_0:4; /* byte 33 */
u8 programmed_maximum_physical_link_rate:4;
u16 reserved_byte_34_35; /* byte 34-35 */
u8 partial_pathway_timeout_value:4;
u8 reserved_byte_36_bit_4_7:4; /* byte 36 */
u16 reserved_byte_37_38; /* byte 37-38 */
u8 reserved_byte_39; /* byte 39 */
};
/**
* struct smp_request_vendor_specific - This structure depicts the vendor
* specific space for SMP request.
*
*
*/
#define SMP_REQUEST_VENDOR_SPECIFIC_MAX_LENGTH 1016
struct smp_request_vendor_specific {
u8 request_bytes[SMP_REQUEST_VENDOR_SPECIFIC_MAX_LENGTH];
};
/**
* struct smp_request - This structure simply unionizes the existing request
* structures into a common request type.
*
*
*/
struct smp_request {
struct smp_request_header header;
union { /* bytes 4-N */
struct smp_request_general report_general;
struct smp_request_phy_identifier discover;
struct smp_request_general report_manufacturer_information;
struct smp_request_phy_identifier report_phy_sata;
struct smp_request_phy_control phy_control;
struct smp_request_phy_identifier report_phy_error_log;
struct smp_request_phy_identifier report_route_information;
struct smp_request_configure_route_information configure_route_information;
struct smp_request_vendor_specific vendor_specific_request;
} request;
};
/**
* struct smp_response_report_general - This structure depicts the SMP Report
......@@ -493,6 +349,7 @@ struct smp_response_report_phy_sata {
};
#define SMP_REQUEST_VENDOR_SPECIFIC_MAX_LENGTH 1016
struct smp_response_vendor_specific {
u8 response_bytes[SMP_REQUEST_VENDOR_SPECIFIC_MAX_LENGTH];
};
......@@ -517,17 +374,6 @@ struct smp_response {
};
/* SMP Request Functions */
#define SMP_FUNCTION_REPORT_GENERAL 0x00
#define SMP_FUNCTION_REPORT_MANUFACTURER_INFORMATION 0x01
#define SMP_FUNCTION_DISCOVER 0x10
#define SMP_FUNCTION_REPORT_PHY_ERROR_LOG 0x11
#define SMP_FUNCTION_REPORT_PHY_SATA 0x12
#define SMP_FUNCTION_REPORT_ROUTE_INFORMATION 0X13
#define SMP_FUNCTION_CONFIGURE_ROUTE_INFORMATION 0X90
#define SMP_FUNCTION_PHY_CONTROL 0x91
#define SMP_FUNCTION_PHY_TEST 0x92
#define SMP_FRAME_TYPE_REQUEST 0x40
#define SMP_FRAME_TYPE_RESPONSE 0x41
......
drivers/scsi/isci/core/scic_sds_request.c
View file @ 2ec53eb4
......@@ -1658,38 +1658,47 @@ static void scic_sds_general_request_construct(struct scic_sds_controller *scic,
}
}
enum sci_status scic_io_request_construct(struct scic_sds_controller *scic,
enum sci_status
scic_io_request_construct(struct scic_sds_controller *scic,
struct scic_sds_remote_device *sci_dev,
u16 io_tag,
void *user_io_request_object,
void *user_req,
struct scic_sds_request *sci_req,
struct scic_sds_request **new_scic_io_request_handle)
struct scic_sds_request **new_sci_req)
{
struct domain_device *dev = sci_dev_to_domain(sci_dev);
enum sci_status status = SCI_SUCCESS;
/* Build the common part of the request */
scic_sds_general_request_construct(scic, sci_dev, io_tag,
user_io_request_object, sci_req);
scic_sds_general_request_construct(scic,
sci_dev,
io_tag,
user_req,
sci_req);
if (sci_dev->rnc.remote_node_index == SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX)
if (sci_dev->rnc.remote_node_index ==
SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX)
return SCI_FAILURE_INVALID_REMOTE_DEVICE;
if (dev->dev_type == SAS_END_DEV) {
if (dev->dev_type == SAS_END_DEV)
scic_sds_ssp_io_request_assign_buffers(sci_req);
} else if (dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTOCOL_STP)) {
else if ((dev->dev_type == SATA_DEV) ||
(dev->tproto & SAS_PROTOCOL_STP)) {
scic_sds_stp_request_assign_buffers(sci_req);
memset(sci_req->command_buffer, 0, sizeof(struct host_to_dev_fis));
memset(sci_req->command_buffer,
0,
sizeof(struct host_to_dev_fis));
} else if (dev_is_expander(dev)) {
scic_sds_smp_request_assign_buffers(sci_req);
memset(sci_req->command_buffer, 0, sizeof(struct smp_request));
memset(sci_req->command_buffer, 0, sizeof(struct smp_req));
} else
status = SCI_FAILURE_UNSUPPORTED_PROTOCOL;
if (status == SCI_SUCCESS) {
memset(sci_req->task_context_buffer, 0,
memset(sci_req->task_context_buffer,
0,
SCI_FIELD_OFFSET(struct scu_task_context, sgl_pair_ab));
*new_scic_io_request_handle = sci_req;
*new_sci_req = sci_req;
}
return status;
......
drivers/scsi/isci/core/scic_sds_smp_request.c
View file @ 2ec53eb4
......@@ -53,6 +53,7 @@
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "sas.h"
#include "intel_sas.h"
#include "sci_base_state_machine.h"
#include "scic_controller.h"
......@@ -67,7 +68,7 @@
static void scu_smp_request_construct_task_context(
struct scic_sds_request *sci_req,
struct smp_request *smp_request);
struct smp_req *smp_req);
/**
*
......@@ -77,7 +78,7 @@ static void scu_smp_request_construct_task_context(
u32 scic_sds_smp_request_get_object_size(void)
{
return sizeof(struct scic_sds_request)
+ sizeof(struct smp_request)
+ sizeof(struct smp_req)
+ sizeof(struct smp_response)
+ sizeof(struct scu_task_context)
+ SMP_CACHE_BYTES;
......@@ -100,7 +101,7 @@ u32 scic_sds_smp_request_get_object_size(void)
*/
#define scic_sds_smp_request_get_response_buffer(memory) \
(((char *)(scic_sds_smp_request_get_command_buffer(memory))) \
+ sizeof(struct smp_request))
+ sizeof(struct smp_req))
/**
* scic_sds_smp_request_get_task_context_buffer() -
......@@ -142,21 +143,8 @@ void scic_sds_smp_request_assign_buffers(
}
/**
* This method is called by the SCI user to build an SMP pass-through IO
* request.
* @scic_smp_request: This parameter specifies the handle to the io request
* object to be built.
* @passthru_cb: This parameter specifies the pointer to the callback structure
* that contains the function pointers
*
* - The user must have previously called scic_io_request_construct() on the
* supplied IO request. Indicate if the controller successfully built the IO
* request.
*/
/**
* This method will fill in the SCU Task Context for a SMP request. The
/*
* This function will fill in the SCU Task Context for a SMP request. The
* following important settings are utilized: -# task_type ==
* SCU_TASK_TYPE_SMP. This simply indicates that a normal request type
* (i.e. non-raw frame) is being utilized to perform task management. -#
......@@ -166,26 +154,26 @@ void scic_sds_smp_request_assign_buffers(
* constructed.
*
*/
static void scu_smp_request_construct_task_context(
struct scic_sds_request *sds_request,
struct smp_request *smp_request)
static void
scu_smp_request_construct_task_context(struct scic_sds_request *sci_req,
struct smp_req *smp_req)
{
dma_addr_t dma_addr;
struct scic_sds_controller *controller;
struct scic_sds_controller *scic;
struct scic_sds_remote_device *sci_dev;
struct scic_sds_port *target_port;
struct scic_sds_port *sci_port;
struct scu_task_context *task_context;
/* byte swap the smp request. */
scic_word_copy_with_swap(sds_request->command_buffer,
(u32 *)smp_request,
sizeof(struct smp_request) / sizeof(u32));
scic_word_copy_with_swap(sci_req->command_buffer,
(u32 *)smp_req,
sizeof(struct smp_req) / sizeof(u32));
task_context = scic_sds_request_get_task_context(sds_request);
task_context = scic_sds_request_get_task_context(sci_req);
controller = scic_sds_request_get_controller(sds_request);
sci_dev = scic_sds_request_get_device(sds_request);
target_port = scic_sds_request_get_port(sds_request);
scic = scic_sds_request_get_controller(sci_req);
sci_dev = scic_sds_request_get_device(sci_req);
sci_port = scic_sds_request_get_port(sci_req);
/*
* Fill in the TC with the its required data
......@@ -195,9 +183,8 @@ static void scu_smp_request_construct_task_context(
task_context->initiator_request = 1;
task_context->connection_rate = sci_dev->connection_rate;
task_context->protocol_engine_index =
scic_sds_controller_get_protocol_engine_group(controller);
task_context->logical_port_index =
scic_sds_port_get_index(target_port);
scic_sds_controller_get_protocol_engine_group(scic);
task_context->logical_port_index = scic_sds_port_get_index(sci_port);
task_context->protocol_type = SCU_TASK_CONTEXT_PROTOCOL_SMP;
task_context->abort = 0;
task_context->valid = SCU_TASK_CONTEXT_VALID;
......@@ -220,8 +207,7 @@ static void scu_smp_request_construct_task_context(
task_context->address_modifier = 0;
/* 10h */
task_context->ssp_command_iu_length =
smp_request->header.request_length;
task_context->ssp_command_iu_length = smp_req->req_len;
/* 14h */
task_context->transfer_length_bytes = 0;
......@@ -231,7 +217,7 @@ static void scu_smp_request_construct_task_context(
* since commandIU has been build by framework at this point, we just
* copy the frist DWord from command IU to this location. */
memcpy((void *)(&task_context->type.smp),
sds_request->command_buffer,
sci_req->command_buffer,
sizeof(u32));
/*
......@@ -241,19 +227,18 @@ static void scu_smp_request_construct_task_context(
*/
task_context->task_phase = 0;
if (sds_request->was_tag_assigned_by_user) {
if (sci_req->was_tag_assigned_by_user) {
/*
* Build the task context now since we have already read
* the data
*/
sds_request->post_context =
sci_req->post_context =
(SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC |
(scic_sds_controller_get_protocol_engine_group(
controller) <<
(scic_sds_controller_get_protocol_engine_group(scic) <<
SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT) |
(scic_sds_port_get_index(target_port) <<
(scic_sds_port_get_index(sci_port) <<
SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT) |
scic_sds_io_tag_get_index(sds_request->io_tag));
scic_sds_io_tag_get_index(sci_req->io_tag));
} else {
/*
* Build the task context now since we have already read
......@@ -261,12 +246,11 @@ static void scu_smp_request_construct_task_context(
* I/O tag index is not assigned because we have to wait
* until we get a TCi.
*/
sds_request->post_context =
sci_req->post_context =
(SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC |
(scic_sds_controller_get_protocol_engine_group(
controller) <<
(scic_sds_controller_get_protocol_engine_group(scic) <<
SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT) |
(scic_sds_port_get_index(target_port) <<
(scic_sds_port_get_index(sci_port) <<
SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT));
}
......@@ -274,9 +258,9 @@ static void scu_smp_request_construct_task_context(
* Copy the physical address for the command buffer to the SCU Task
* Context command buffer should not contain command header.
*/
dma_addr = scic_io_request_get_dma_addr(sds_request,
dma_addr = scic_io_request_get_dma_addr(sci_req,
(char *)
(sds_request->command_buffer) +
(sci_req->command_buffer) +
sizeof(u32));
task_context->command_iu_upper = upper_32_bits(dma_addr);
......@@ -577,7 +561,7 @@ static const struct sci_base_state scic_sds_smp_request_started_substate_table[]
*/
enum sci_status scic_io_request_construct_smp(struct scic_sds_request *sci_req)
{
struct smp_request *smp_req = kmalloc(sizeof(*smp_req), GFP_KERNEL);
struct smp_req *smp_req = kmalloc(sizeof(*smp_req), GFP_KERNEL);
if (!smp_req)
return SCI_FAILURE_INSUFFICIENT_RESOURCES;
......@@ -600,18 +584,18 @@ enum sci_status scic_io_request_construct_smp(struct scic_sds_request *sci_req)
* Look at the SMP requests' header fields; for certain SAS 1.x SMP
* functions under SAS 2.0, a zero request length really indicates
* a non-zero default length. */
if (smp_req->header.request_length == 0) {
switch (smp_req->header.function) {
case SMP_FUNCTION_DISCOVER:
case SMP_FUNCTION_REPORT_PHY_ERROR_LOG:
case SMP_FUNCTION_REPORT_PHY_SATA:
case SMP_FUNCTION_REPORT_ROUTE_INFORMATION:
smp_req->header.request_length = 2;
if (smp_req->req_len == 0) {
switch (smp_req->func) {
case SMP_DISCOVER:
case SMP_REPORT_PHY_ERR_LOG:
case SMP_REPORT_PHY_SATA:
case SMP_REPORT_ROUTE_INFO:
smp_req->req_len = 2;
break;
case SMP_FUNCTION_CONFIGURE_ROUTE_INFORMATION:
case SMP_FUNCTION_PHY_CONTROL:
case SMP_FUNCTION_PHY_TEST:
smp_req->header.request_length = 9;
case SMP_CONF_ROUTE_INFO:
case SMP_PHY_CONTROL:
case SMP_PHY_TEST_FUNCTION:
smp_req->req_len = 9;
break;
/* Default - zero is a valid default for 2.0. */
}
......
drivers/scsi/isci/request.c
View file @ 2ec53eb4
......@@ -61,7 +61,8 @@
#include "request.h"
#include "sata.h"
#include "scu_completion_codes.h"
#include "core/scic_sds_request.h"
#include "scic_sds_request.h"
#include "sas.h"
static enum sci_status isci_request_ssp_request_construct(
struct isci_request *request)
......@@ -113,47 +114,37 @@ static enum sci_status isci_request_stp_request_construct(
return status;
}
/**
* isci_smp_request_build() - This function builds the smp request object.
* @isci_host: This parameter specifies the ISCI host object
* @request: This parameter points to the isci_request object allocated in the
/*
* isci_smp_request_build() - This function builds the smp request.
* @ireq: This parameter points to the isci_request allocated in the
* request construct function.
* @sci_device: This parameter is the handle for the sci core's remote device
* object that is the destination for this request.
*
* SCI_SUCCESS on successfull completion, or specific failure code.
*/
static enum sci_status isci_smp_request_build(
struct isci_request *request)
static enum sci_status isci_smp_request_build(struct isci_request *ireq)
{
enum sci_status status = SCI_FAILURE;
struct sas_task *task = isci_request_access_task(request);
struct sas_task *task = isci_request_access_task(ireq);
struct scic_sds_request *sci_req = ireq->sci_request_handle;
void *cmd_iu = sci_req->command_buffer;
void *command_iu_address =
scic_io_request_get_command_iu_address(
request->sci_request_handle
);
dev_dbg(&ireq->isci_host->pdev->dev,
"%s: request = %p\n", __func__, ireq);
dev_dbg(&request->isci_host->pdev->dev,
"%s: request = %p\n",
__func__,
request);
dev_dbg(&request->isci_host->pdev->dev,
dev_dbg(&ireq->isci_host->pdev->dev,
"%s: smp_req len = %d\n",
__func__,
task->smp_task.smp_req.length);
/* copy the smp_command to the address; */
sg_copy_to_buffer(&task->smp_task.smp_req, 1,
(char *)command_iu_address,
sizeof(struct smp_request)
);
(char *)cmd_iu,
sizeof(struct smp_req));
status = scic_io_request_construct_smp(request->sci_request_handle);
status = scic_io_request_construct_smp(sci_req);
if (status != SCI_SUCCESS)
dev_warn(&request->isci_host->pdev->dev,
"%s: scic_io_request_construct_smp failed with "
"status = %d\n",
dev_warn(&ireq->isci_host->pdev->dev,
"%s: failed with status = %d\n",
__func__,
status);
......@@ -1073,9 +1064,8 @@ void isci_request_io_request_complete(
sg_copy_from_buffer(
&task->smp_task.smp_resp, 1,
command_iu_address
+ sizeof(struct smp_request),
sizeof(struct smp_resp)
);
+ sizeof(struct smp_req),
sizeof(struct smp_resp));
} else if (completion_status
== SCI_IO_SUCCESS_IO_DONE_EARLY) {
......
drivers/scsi/isci/sas.h
View file @ 2ec53eb4
......@@ -55,6 +55,9 @@
#ifndef _SCI_SAS_H_
#define _SCI_SAS_H_
#include <linux/kernel.h>
/*
* SATA FIS Types These constants depict the various SATA FIS types devined in
* the serial ATA specification.
......@@ -106,4 +109,108 @@ struct ssp_task_iu {
u8 _r_c[12];
} __packed;
/*
* struct smp_req_phy_id - This structure defines the contents of
* an SMP Request that is comprised of the struct smp_request_header and a
* phy identifier.
* Examples: SMP_REQUEST_DISCOVER, SMP_REQUEST_REPORT_PHY_SATA.
*
* For specific information on each of these individual fields please reference
* the SAS specification.
*/
struct smp_req_phy_id {
u8 _r_a[4]; /* bytes 4-7 */
u8 ign_zone_grp:1; /* byte 8 */
u8 _r_b:7;
u8 phy_id; /* byte 9 */
u8 _r_c; /* byte 10 */
u8 _r_d; /* byte 11 */
} __packed;
/*
* struct smp_req_config_route_info - This structure defines the
* contents of an SMP Configure Route Information request.
*
* For specific information on each of these individual fields please reference
* the SAS specification.
*/
struct smp_req_conf_rtinfo {
u16 exp_change_cnt; /* bytes 4-5 */
u8 exp_rt_idx_hi; /* byte 6 */
u8 exp_rt_idx; /* byte 7 */
u8 _r_a; /* byte 8 */
u8 phy_id; /* byte 9 */
u16 _r_b; /* bytes 10-11 */
u8 _r_c:7; /* byte 12 */
u8 dis_rt_entry:1;
u8 _r_d[3]; /* bytes 13-15 */
u8 rt_sas_addr[8]; /* bytes 16-23 */
u8 _r_e[16]; /* bytes 24-39 */
} __packed;
/*
* struct smp_req_phycntl - This structure defines the contents of an
* SMP Phy Controller request.
*
* For specific information on each of these individual fields please reference
* the SAS specification.
*/
struct smp_req_phycntl {
u16 exp_change_cnt; /* byte 4-5 */
u8 _r_a[3]; /* bytes 6-8 */
u8 phy_id; /* byte 9 */
u8 phy_op; /* byte 10 */
u8 upd_pathway:1; /* byte 11 */
u8 _r_b:7;
u8 _r_c[12]; /* byte 12-23 */
u8 att_dev_name[8]; /* byte 24-31 */
u8 _r_d:4; /* byte 32 */
u8 min_linkrate:4;
u8 _r_e:4; /* byte 33 */
u8 max_linkrate:4;
u8 _r_f[2]; /* byte 34-35 */
u8 pathway:4; /* byte 36 */
u8 _r_g:4;
u8 _r_h[3]; /* bytes 37-39 */
} __packed;
#define SMP_REQ_VENDOR_SPECIFIC_MAX_LEN 1016
/*
* struct smp_req - This structure simply unionizes the existing request
* structures into a common request type.
*
* XXX: This data structure may need to go to scsi/sas.h
*/
struct smp_req {
u8 type; /* byte 0 */
u8 func; /* byte 1 */
u8 alloc_resp_len; /* byte 2 */
u8 req_len; /* byte 3 */
union { /* bytes 4-N */
u32 smp_req_gen;
struct smp_req_phy_id phy_id;
struct smp_req_phycntl phy_cntl;
struct smp_req_conf_rtinfo conf_rt_info;
u8 vendor[SMP_REQ_VENDOR_SPECIFIC_MAX_LEN];
};
} __packed;
#endif
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