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https://github.com/torvalds/linux
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e3d6f909ed
This patch contains the squashed version of a number of cleanups and minor fixes from Andy's initial series (round 1) for target core this past spring. The condensed log looks like: target: use errno values instead of returning -1 for everything target: Rename transport_calc_sg_num to transport_init_task_sg target: Fix leak in error path in transport_init_task_sg target/pscsi: Remove pscsi_get_sh() usage target: Make two runtime checks into WARN_ONs target: Remove hba queue depth and convert to spin_lock_irq usage target: dev->dev_status_queue_obj is unused target: Make struct se_queue_req.cmd type struct se_cmd * target: Remove __transport_get_qr_from_queue() target: Rename se_dev->g_se_dev_list to se_dev_node target: Remove struct se_global target: Simplify scsi mib index table code target: Make dev_queue_obj a member of se_device instead of a pointer target: remove extraneous returns at end of void functions target: Ensure transport_dump_vpd_ident_type returns null-terminated str target: Function pointers don't need to use '&' to be assigned target: Fix comment in __transport_execute_tasks() target: Misc style cleanups target: rename struct pr_reservation_template to pr_reservation target: Remove #defines that just perform indirection target: Inline transport_get_task_from_execute_queue() target: Minor header comment fixes Signed-off-by: Andy Grover <agrover@redhat.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
70 lines
1.7 KiB
C
70 lines
1.7 KiB
C
#ifndef TARGET_CORE_RD_H
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#define TARGET_CORE_RD_H
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#define RD_HBA_VERSION "v4.0"
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#define RD_DR_VERSION "4.0"
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#define RD_MCP_VERSION "4.0"
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/* Largest piece of memory kmalloc can allocate */
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#define RD_MAX_ALLOCATION_SIZE 65536
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#define RD_DEVICE_QUEUE_DEPTH 32
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#define RD_MAX_DEVICE_QUEUE_DEPTH 128
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#define RD_BLOCKSIZE 512
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#define RD_MAX_SECTORS 1024
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/* Used in target_core_init_configfs() for virtual LUN 0 access */
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int __init rd_module_init(void);
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void rd_module_exit(void);
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#define RRF_EMULATE_CDB 0x01
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#define RRF_GOT_LBA 0x02
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struct rd_request {
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struct se_task rd_task;
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/* SCSI CDB from iSCSI Command PDU */
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unsigned char rd_scsi_cdb[TCM_MAX_COMMAND_SIZE];
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/* Offset from start of page */
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u32 rd_offset;
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/* Starting page in Ramdisk for request */
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u32 rd_page;
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/* Total number of pages needed for request */
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u32 rd_page_count;
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/* Scatterlist count */
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u32 rd_size;
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/* Ramdisk device */
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struct rd_dev *rd_dev;
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} ____cacheline_aligned;
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struct rd_dev_sg_table {
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u32 page_start_offset;
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u32 page_end_offset;
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u32 rd_sg_count;
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struct scatterlist *sg_table;
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} ____cacheline_aligned;
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#define RDF_HAS_PAGE_COUNT 0x01
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struct rd_dev {
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int rd_direct;
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u32 rd_flags;
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/* Unique Ramdisk Device ID in Ramdisk HBA */
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u32 rd_dev_id;
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/* Total page count for ramdisk device */
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u32 rd_page_count;
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/* Number of SG tables in sg_table_array */
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u32 sg_table_count;
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u32 rd_queue_depth;
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/* Array of rd_dev_sg_table_t containing scatterlists */
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struct rd_dev_sg_table *sg_table_array;
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/* Ramdisk HBA device is connected to */
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struct rd_host *rd_host;
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} ____cacheline_aligned;
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struct rd_host {
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u32 rd_host_dev_id_count;
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u32 rd_host_id; /* Unique Ramdisk Host ID */
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} ____cacheline_aligned;
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#endif /* TARGET_CORE_RD_H */
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