From: Vladimir Sokolovsky Date: Wed, 21 Aug 2019 20:59:34 +0000 (-0500) Subject: Removed nvme headers X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=b867629129e75b728e1bb2e3fc635f034c6b4396;p=compat-rdma%2Fcompat.git Removed nvme headers These headers will be taken directly from the kernel Signed-off-by: Vladimir Sokolovsky --- diff --git a/include/linux/nvme-fc-driver.h b/include/linux/nvme-fc-driver.h deleted file mode 100644 index 496ff75..0000000 --- a/include/linux/nvme-fc-driver.h +++ /dev/null @@ -1,896 +0,0 @@ -/* - * Copyright (c) 2016, Avago Technologies - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - */ - -#ifndef _NVME_FC_DRIVER_H -#define _NVME_FC_DRIVER_H 1 - - -/* - * ********************** LLDD FC-NVME Host API ******************** - * - * For FC LLDD's that are the NVME Host role. - * - * ****************************************************************** - */ - - - -/* FC Port role bitmask - can merge with FC Port Roles in fc transport */ -#define FC_PORT_ROLE_NVME_INITIATOR 0x10 -#define FC_PORT_ROLE_NVME_TARGET 0x20 -#define FC_PORT_ROLE_NVME_DISCOVERY 0x40 - - -/** - * struct nvme_fc_port_info - port-specific ids and FC connection-specific - * data element used during NVME Host role - * registrations - * - * Static fields describing the port being registered: - * @node_name: FC WWNN for the port - * @port_name: FC WWPN for the port - * @port_role: What NVME roles are supported (see FC_PORT_ROLE_xxx) - * @dev_loss_tmo: maximum delay for reconnects to an association on - * this device. Used only on a remoteport. - * - * Initialization values for dynamic port fields: - * @port_id: FC N_Port_ID currently assigned the port. Upper 8 bits must - * be set to 0. - */ -struct nvme_fc_port_info { - u64 node_name; - u64 port_name; - u32 port_role; - u32 port_id; - u32 dev_loss_tmo; -}; - - -/** - * struct nvmefc_ls_req - Request structure passed from NVME-FC transport - * to LLDD in order to perform a NVME FC-4 LS - * request and obtain a response. - * - * Values set by the NVME-FC layer prior to calling the LLDD ls_req - * entrypoint. - * @rqstaddr: pointer to request buffer - * @rqstdma: PCI DMA address of request buffer - * @rqstlen: Length, in bytes, of request buffer - * @rspaddr: pointer to response buffer - * @rspdma: PCI DMA address of response buffer - * @rsplen: Length, in bytes, of response buffer - * @timeout: Maximum amount of time, in seconds, to wait for the LS response. - * If timeout exceeded, LLDD to abort LS exchange and complete - * LS request with error status. - * @private: pointer to memory allocated alongside the ls request structure - * that is specifically for the LLDD to use while processing the - * request. The length of the buffer corresponds to the - * lsrqst_priv_sz value specified in the nvme_fc_port_template - * supplied by the LLDD. - * @done: The callback routine the LLDD is to invoke upon completion of - * the LS request. req argument is the pointer to the original LS - * request structure. Status argument must be 0 upon success, a - * negative errno on failure (example: -ENXIO). - */ -struct nvmefc_ls_req { - void *rqstaddr; - dma_addr_t rqstdma; - u32 rqstlen; - void *rspaddr; - dma_addr_t rspdma; - u32 rsplen; - u32 timeout; - - void *private; - - void (*done)(struct nvmefc_ls_req *req, int status); - -} __aligned(sizeof(u64)); /* alignment for other things alloc'd with */ - - -enum nvmefc_fcp_datadir { - NVMEFC_FCP_NODATA, /* payload_length and sg_cnt will be zero */ - NVMEFC_FCP_WRITE, - NVMEFC_FCP_READ, -}; - - -/** - * struct nvmefc_fcp_req - Request structure passed from NVME-FC transport - * to LLDD in order to perform a NVME FCP IO operation. - * - * Values set by the NVME-FC layer prior to calling the LLDD fcp_io - * entrypoint. - * @cmdaddr: pointer to the FCP CMD IU buffer - * @rspaddr: pointer to the FCP RSP IU buffer - * @cmddma: PCI DMA address of the FCP CMD IU buffer - * @rspdma: PCI DMA address of the FCP RSP IU buffer - * @cmdlen: Length, in bytes, of the FCP CMD IU buffer - * @rsplen: Length, in bytes, of the FCP RSP IU buffer - * @payload_length: Length of DATA_IN or DATA_OUT payload data to transfer - * @sg_table: scatter/gather structure for payload data - * @first_sgl: memory for 1st scatter/gather list segment for payload data - * @sg_cnt: number of elements in the scatter/gather list - * @io_dir: direction of the FCP request (see NVMEFC_FCP_xxx) - * @sqid: The nvme SQID the command is being issued on - * @done: The callback routine the LLDD is to invoke upon completion of - * the FCP operation. req argument is the pointer to the original - * FCP IO operation. - * @private: pointer to memory allocated alongside the FCP operation - * request structure that is specifically for the LLDD to use - * while processing the operation. The length of the buffer - * corresponds to the fcprqst_priv_sz value specified in the - * nvme_fc_port_template supplied by the LLDD. - * - * Values set by the LLDD indicating completion status of the FCP operation. - * Must be set prior to calling the done() callback. - * @transferred_length: amount of payload data, in bytes, that were - * transferred. Should equal payload_length on success. - * @rcv_rsplen: length, in bytes, of the FCP RSP IU received. - * @status: Completion status of the FCP operation. must be 0 upon success, - * negative errno value upon failure (ex: -EIO). Note: this is - * NOT a reflection of the NVME CQE completion status. Only the - * status of the FCP operation at the NVME-FC level. - */ -struct nvmefc_fcp_req { - void *cmdaddr; - void *rspaddr; - dma_addr_t cmddma; - dma_addr_t rspdma; - u16 cmdlen; - u16 rsplen; - - u32 payload_length; - struct sg_table sg_table; - struct scatterlist *first_sgl; - int sg_cnt; - enum nvmefc_fcp_datadir io_dir; - - __le16 sqid; - - void (*done)(struct nvmefc_fcp_req *req); - - void *private; - - u32 transferred_length; - u16 rcv_rsplen; - u32 status; -} __aligned(sizeof(u64)); /* alignment for other things alloc'd with */ - - -/* - * Direct copy of fc_port_state enum. For later merging - */ -enum nvme_fc_obj_state { - FC_OBJSTATE_UNKNOWN, - FC_OBJSTATE_NOTPRESENT, - FC_OBJSTATE_ONLINE, - FC_OBJSTATE_OFFLINE, /* User has taken Port Offline */ - FC_OBJSTATE_BLOCKED, - FC_OBJSTATE_BYPASSED, - FC_OBJSTATE_DIAGNOSTICS, - FC_OBJSTATE_LINKDOWN, - FC_OBJSTATE_ERROR, - FC_OBJSTATE_LOOPBACK, - FC_OBJSTATE_DELETED, -}; - - -/** - * struct nvme_fc_local_port - structure used between NVME-FC transport and - * a LLDD to reference a local NVME host port. - * Allocated/created by the nvme_fc_register_localport() - * transport interface. - * - * Fields with static values for the port. Initialized by the - * port_info struct supplied to the registration call. - * @port_num: NVME-FC transport host port number - * @port_role: NVME roles are supported on the port (see FC_PORT_ROLE_xxx) - * @node_name: FC WWNN for the port - * @port_name: FC WWPN for the port - * @private: pointer to memory allocated alongside the local port - * structure that is specifically for the LLDD to use. - * The length of the buffer corresponds to the local_priv_sz - * value specified in the nvme_fc_port_template supplied by - * the LLDD. - * @dev_loss_tmo: maximum delay for reconnects to an association on - * this device. To modify, lldd must call - * nvme_fc_set_remoteport_devloss(). - * - * Fields with dynamic values. Values may change base on link state. LLDD - * may reference fields directly to change them. Initialized by the - * port_info struct supplied to the registration call. - * @port_id: FC N_Port_ID currently assigned the port. Upper 8 bits must - * be set to 0. - * @port_state: Operational state of the port. - */ -struct nvme_fc_local_port { - /* static/read-only fields */ - u32 port_num; - u32 port_role; - u64 node_name; - u64 port_name; - - void *private; - - /* dynamic fields */ - u32 port_id; - enum nvme_fc_obj_state port_state; -} __aligned(sizeof(u64)); /* alignment for other things alloc'd with */ - - -/** - * struct nvme_fc_remote_port - structure used between NVME-FC transport and - * a LLDD to reference a remote NVME subsystem port. - * Allocated/created by the nvme_fc_register_remoteport() - * transport interface. - * - * Fields with static values for the port. Initialized by the - * port_info struct supplied to the registration call. - * @port_num: NVME-FC transport remote subsystem port number - * @port_role: NVME roles are supported on the port (see FC_PORT_ROLE_xxx) - * @node_name: FC WWNN for the port - * @port_name: FC WWPN for the port - * @localport: pointer to the NVME-FC local host port the subsystem is - * connected to. - * @private: pointer to memory allocated alongside the remote port - * structure that is specifically for the LLDD to use. - * The length of the buffer corresponds to the remote_priv_sz - * value specified in the nvme_fc_port_template supplied by - * the LLDD. - * - * Fields with dynamic values. Values may change base on link or login - * state. LLDD may reference fields directly to change them. Initialized by - * the port_info struct supplied to the registration call. - * @port_id: FC N_Port_ID currently assigned the port. Upper 8 bits must - * be set to 0. - * @port_state: Operational state of the remote port. Valid values are - * ONLINE or UNKNOWN. - */ -struct nvme_fc_remote_port { - /* static fields */ - u32 port_num; - u32 port_role; - u64 node_name; - u64 port_name; - struct nvme_fc_local_port *localport; - void *private; - u32 dev_loss_tmo; - - /* dynamic fields */ - u32 port_id; - enum nvme_fc_obj_state port_state; -} __aligned(sizeof(u64)); /* alignment for other things alloc'd with */ - - -/** - * struct nvme_fc_port_template - structure containing static entrypoints and - * operational parameters for an LLDD that supports NVME host - * behavior. Passed by reference in port registrations. - * NVME-FC transport remembers template reference and may - * access it during runtime operation. - * - * Host/Initiator Transport Entrypoints/Parameters: - * - * @localport_delete: The LLDD initiates deletion of a localport via - * nvme_fc_deregister_localport(). However, the teardown is - * asynchronous. This routine is called upon the completion of the - * teardown to inform the LLDD that the localport has been deleted. - * Entrypoint is Mandatory. - * - * @remoteport_delete: The LLDD initiates deletion of a remoteport via - * nvme_fc_deregister_remoteport(). However, the teardown is - * asynchronous. This routine is called upon the completion of the - * teardown to inform the LLDD that the remoteport has been deleted. - * Entrypoint is Mandatory. - * - * @create_queue: Upon creating a host<->controller association, queues are - * created such that they can be affinitized to cpus/cores. This - * callback into the LLDD to notify that a controller queue is being - * created. The LLDD may choose to allocate an associated hw queue - * or map it onto a shared hw queue. Upon return from the call, the - * LLDD specifies a handle that will be given back to it for any - * command that is posted to the controller queue. The handle can - * be used by the LLDD to map quickly to the proper hw queue for - * command execution. The mask of cpu's that will map to this queue - * at the block-level is also passed in. The LLDD should use the - * queue id and/or cpu masks to ensure proper affinitization of the - * controller queue to the hw queue. - * Entrypoint is Optional. - * - * @delete_queue: This is the inverse of the crete_queue. During - * host<->controller association teardown, this routine is called - * when a controller queue is being terminated. Any association with - * a hw queue should be termined. If there is a unique hw queue, the - * hw queue should be torn down. - * Entrypoint is Optional. - * - * @poll_queue: Called to poll for the completion of an io on a blk queue. - * Entrypoint is Optional. - * - * @ls_req: Called to issue a FC-NVME FC-4 LS service request. - * The nvme_fc_ls_req structure will fully describe the buffers for - * the request payload and where to place the response payload. The - * LLDD is to allocate an exchange, issue the LS request, obtain the - * LS response, and call the "done" routine specified in the request - * structure (argument to done is the ls request structure itself). - * Entrypoint is Mandatory. - * - * @fcp_io: called to issue a FC-NVME I/O request. The I/O may be for - * an admin queue or an i/o queue. The nvmefc_fcp_req structure will - * fully describe the io: the buffer containing the FC-NVME CMD IU - * (which contains the SQE), the sg list for the payload if applicable, - * and the buffer to place the FC-NVME RSP IU into. The LLDD will - * complete the i/o, indicating the amount of data transferred or - * any transport error, and call the "done" routine specified in the - * request structure (argument to done is the fcp request structure - * itself). - * Entrypoint is Mandatory. - * - * @ls_abort: called to request the LLDD to abort the indicated ls request. - * The call may return before the abort has completed. After aborting - * the request, the LLDD must still call the ls request done routine - * indicating an FC transport Aborted status. - * Entrypoint is Mandatory. - * - * @fcp_abort: called to request the LLDD to abort the indicated fcp request. - * The call may return before the abort has completed. After aborting - * the request, the LLDD must still call the fcp request done routine - * indicating an FC transport Aborted status. - * Entrypoint is Mandatory. - * - * @max_hw_queues: indicates the maximum number of hw queues the LLDD - * supports for cpu affinitization. - * Value is Mandatory. Must be at least 1. - * - * @max_sgl_segments: indicates the maximum number of sgl segments supported - * by the LLDD - * Value is Mandatory. Must be at least 1. Recommend at least 256. - * - * @max_dif_sgl_segments: indicates the maximum number of sgl segments - * supported by the LLDD for DIF operations. - * Value is Mandatory. Must be at least 1. Recommend at least 256. - * - * @dma_boundary: indicates the dma address boundary where dma mappings - * will be split across. - * Value is Mandatory. Typical value is 0xFFFFFFFF to split across - * 4Gig address boundarys - * - * @local_priv_sz: The LLDD sets this field to the amount of additional - * memory that it would like fc nvme layer to allocate on the LLDD's - * behalf whenever a localport is allocated. The additional memory - * area solely for the of the LLDD and its location is specified by - * the localport->private pointer. - * Value is Mandatory. Allowed to be zero. - * - * @remote_priv_sz: The LLDD sets this field to the amount of additional - * memory that it would like fc nvme layer to allocate on the LLDD's - * behalf whenever a remoteport is allocated. The additional memory - * area solely for the of the LLDD and its location is specified by - * the remoteport->private pointer. - * Value is Mandatory. Allowed to be zero. - * - * @lsrqst_priv_sz: The LLDD sets this field to the amount of additional - * memory that it would like fc nvme layer to allocate on the LLDD's - * behalf whenever a ls request structure is allocated. The additional - * memory area solely for the of the LLDD and its location is - * specified by the ls_request->private pointer. - * Value is Mandatory. Allowed to be zero. - * - * @fcprqst_priv_sz: The LLDD sets this field to the amount of additional - * memory that it would like fc nvme layer to allocate on the LLDD's - * behalf whenever a fcp request structure is allocated. The additional - * memory area solely for the of the LLDD and its location is - * specified by the fcp_request->private pointer. - * Value is Mandatory. Allowed to be zero. - */ -struct nvme_fc_port_template { - /* initiator-based functions */ - void (*localport_delete)(struct nvme_fc_local_port *); - void (*remoteport_delete)(struct nvme_fc_remote_port *); - int (*create_queue)(struct nvme_fc_local_port *, - unsigned int qidx, u16 qsize, - void **handle); - void (*delete_queue)(struct nvme_fc_local_port *, - unsigned int qidx, void *handle); - void (*poll_queue)(struct nvme_fc_local_port *, void *handle); - int (*ls_req)(struct nvme_fc_local_port *, - struct nvme_fc_remote_port *, - struct nvmefc_ls_req *); - int (*fcp_io)(struct nvme_fc_local_port *, - struct nvme_fc_remote_port *, - void *hw_queue_handle, - struct nvmefc_fcp_req *); - void (*ls_abort)(struct nvme_fc_local_port *, - struct nvme_fc_remote_port *, - struct nvmefc_ls_req *); - void (*fcp_abort)(struct nvme_fc_local_port *, - struct nvme_fc_remote_port *, - void *hw_queue_handle, - struct nvmefc_fcp_req *); - - u32 max_hw_queues; - u16 max_sgl_segments; - u16 max_dif_sgl_segments; - u64 dma_boundary; - - /* sizes of additional private data for data structures */ - u32 local_priv_sz; - u32 remote_priv_sz; - u32 lsrqst_priv_sz; - u32 fcprqst_priv_sz; -}; - - -/* - * Initiator/Host functions - */ - -int nvme_fc_register_localport(struct nvme_fc_port_info *pinfo, - struct nvme_fc_port_template *template, - struct device *dev, - struct nvme_fc_local_port **lport_p); - -int nvme_fc_unregister_localport(struct nvme_fc_local_port *localport); - -int nvme_fc_register_remoteport(struct nvme_fc_local_port *localport, - struct nvme_fc_port_info *pinfo, - struct nvme_fc_remote_port **rport_p); - -int nvme_fc_unregister_remoteport(struct nvme_fc_remote_port *remoteport); - -void nvme_fc_rescan_remoteport(struct nvme_fc_remote_port *remoteport); - -int nvme_fc_set_remoteport_devloss(struct nvme_fc_remote_port *remoteport, - u32 dev_loss_tmo); - - -/* - * *************** LLDD FC-NVME Target/Subsystem API *************** - * - * For FC LLDD's that are the NVME Subsystem role - * - * ****************************************************************** - */ - -/** - * struct nvmet_fc_port_info - port-specific ids and FC connection-specific - * data element used during NVME Subsystem role - * registrations - * - * Static fields describing the port being registered: - * @node_name: FC WWNN for the port - * @port_name: FC WWPN for the port - * - * Initialization values for dynamic port fields: - * @port_id: FC N_Port_ID currently assigned the port. Upper 8 bits must - * be set to 0. - */ -struct nvmet_fc_port_info { - u64 node_name; - u64 port_name; - u32 port_id; -}; - - -/** - * struct nvmefc_tgt_ls_req - Structure used between LLDD and NVMET-FC - * layer to represent the exchange context for - * a FC-NVME Link Service (LS). - * - * The structure is allocated by the LLDD whenever a LS Request is received - * from the FC link. The address of the structure is passed to the nvmet-fc - * layer via the nvmet_fc_rcv_ls_req() call. The address of the structure - * will be passed back to the LLDD when the response is to be transmit. - * The LLDD is to use the address to map back to the LLDD exchange structure - * which maintains information such as the targetport the LS was received - * on, the remote FC NVME initiator that sent the LS, and any FC exchange - * context. Upon completion of the LS response transmit, the address of the - * structure will be passed back to the LS rsp done() routine, allowing the - * nvmet-fc layer to release dma resources. Upon completion of the done() - * routine, no further access will be made by the nvmet-fc layer and the - * LLDD can de-allocate the structure. - * - * Field initialization: - * At the time of the nvmet_fc_rcv_ls_req() call, there is no content that - * is valid in the structure. - * - * When the structure is used for the LLDD->xmt_ls_rsp() call, the nvmet-fc - * layer will fully set the fields in order to specify the response - * payload buffer and its length as well as the done routine to be called - * upon compeletion of the transmit. The nvmet-fc layer will also set a - * private pointer for its own use in the done routine. - * - * Values set by the NVMET-FC layer prior to calling the LLDD xmt_ls_rsp - * entrypoint. - * @rspbuf: pointer to the LS response buffer - * @rspdma: PCI DMA address of the LS response buffer - * @rsplen: Length, in bytes, of the LS response buffer - * @done: The callback routine the LLDD is to invoke upon completion of - * transmitting the LS response. req argument is the pointer to - * the original ls request. - * @nvmet_fc_private: pointer to an internal NVMET-FC layer structure used - * as part of the NVMET-FC processing. The LLDD is not to access - * this pointer. - */ -struct nvmefc_tgt_ls_req { - void *rspbuf; - dma_addr_t rspdma; - u16 rsplen; - - void (*done)(struct nvmefc_tgt_ls_req *req); - void *nvmet_fc_private; /* LLDD is not to access !! */ -}; - -/* Operations that NVME-FC layer may request the LLDD to perform for FCP */ -enum { - NVMET_FCOP_READDATA = 1, /* xmt data to initiator */ - NVMET_FCOP_WRITEDATA = 2, /* xmt data from initiator */ - NVMET_FCOP_READDATA_RSP = 3, /* xmt data to initiator and send - * rsp as well - */ - NVMET_FCOP_RSP = 4, /* send rsp frame */ -}; - -/** - * struct nvmefc_tgt_fcp_req - Structure used between LLDD and NVMET-FC - * layer to represent the exchange context and - * the specific FC-NVME IU operation(s) to perform - * for a FC-NVME FCP IO. - * - * Structure used between LLDD and nvmet-fc layer to represent the exchange - * context for a FC-NVME FCP I/O operation (e.g. a nvme sqe, the sqe-related - * memory transfers, and its assocated cqe transfer). - * - * The structure is allocated by the LLDD whenever a FCP CMD IU is received - * from the FC link. The address of the structure is passed to the nvmet-fc - * layer via the nvmet_fc_rcv_fcp_req() call. The address of the structure - * will be passed back to the LLDD for the data operations and transmit of - * the response. The LLDD is to use the address to map back to the LLDD - * exchange structure which maintains information such as the targetport - * the FCP I/O was received on, the remote FC NVME initiator that sent the - * FCP I/O, and any FC exchange context. Upon completion of the FCP target - * operation, the address of the structure will be passed back to the FCP - * op done() routine, allowing the nvmet-fc layer to release dma resources. - * Upon completion of the done() routine for either RSP or ABORT ops, no - * further access will be made by the nvmet-fc layer and the LLDD can - * de-allocate the structure. - * - * Field initialization: - * At the time of the nvmet_fc_rcv_fcp_req() call, there is no content that - * is valid in the structure. - * - * When the structure is used for an FCP target operation, the nvmet-fc - * layer will fully set the fields in order to specify the scattergather - * list, the transfer length, as well as the done routine to be called - * upon compeletion of the operation. The nvmet-fc layer will also set a - * private pointer for its own use in the done routine. - * - * Values set by the NVMET-FC layer prior to calling the LLDD fcp_op - * entrypoint. - * @op: Indicates the FCP IU operation to perform (see NVMET_FCOP_xxx) - * @hwqid: Specifies the hw queue index (0..N-1, where N is the - * max_hw_queues value from the LLD's nvmet_fc_target_template) - * that the operation is to use. - * @offset: Indicates the DATA_OUT/DATA_IN payload offset to be tranferred. - * Field is only valid on WRITEDATA, READDATA, or READDATA_RSP ops. - * @timeout: amount of time, in seconds, to wait for a response from the NVME - * host. A value of 0 is an infinite wait. - * Valid only for the following ops: - * WRITEDATA: caps the wait for data reception - * READDATA_RSP & RSP: caps wait for FCP_CONF reception (if used) - * @transfer_length: the length, in bytes, of the DATA_OUT or DATA_IN payload - * that is to be transferred. - * Valid only for the WRITEDATA, READDATA, or READDATA_RSP ops. - * @ba_rjt: Contains the BA_RJT payload that is to be transferred. - * Valid only for the NVMET_FCOP_BA_RJT op. - * @sg: Scatter/gather list for the DATA_OUT/DATA_IN payload data. - * Valid only for the WRITEDATA, READDATA, or READDATA_RSP ops. - * @sg_cnt: Number of valid entries in the scatter/gather list. - * Valid only for the WRITEDATA, READDATA, or READDATA_RSP ops. - * @rspaddr: pointer to the FCP RSP IU buffer to be transmit - * Used by RSP and READDATA_RSP ops - * @rspdma: PCI DMA address of the FCP RSP IU buffer - * Used by RSP and READDATA_RSP ops - * @rsplen: Length, in bytes, of the FCP RSP IU buffer - * Used by RSP and READDATA_RSP ops - * @done: The callback routine the LLDD is to invoke upon completion of - * the operation. req argument is the pointer to the original - * FCP subsystem op request. - * @nvmet_fc_private: pointer to an internal NVMET-FC layer structure used - * as part of the NVMET-FC processing. The LLDD is not to - * reference this field. - * - * Values set by the LLDD indicating completion status of the FCP operation. - * Must be set prior to calling the done() callback. - * @transferred_length: amount of DATA_OUT payload data received by a - * a WRITEDATA operation. If not a WRITEDATA operation, value must - * be set to 0. Should equal transfer_length on success. - * @fcp_error: status of the FCP operation. Must be 0 on success; on failure - * must be a NVME_SC_FC_xxxx value. - */ -struct nvmefc_tgt_fcp_req { - u8 op; - u16 hwqid; - u32 offset; - u32 timeout; - u32 transfer_length; - struct fc_ba_rjt ba_rjt; - struct scatterlist *sg; - int sg_cnt; - void *rspaddr; - dma_addr_t rspdma; - u16 rsplen; - - void (*done)(struct nvmefc_tgt_fcp_req *); - - void *nvmet_fc_private; /* LLDD is not to access !! */ - - u32 transferred_length; - int fcp_error; -}; - - -/* Target Features (Bit fields) LLDD supports */ -enum { - NVMET_FCTGTFEAT_READDATA_RSP = (1 << 0), - /* Bit 0: supports the NVMET_FCPOP_READDATA_RSP op, which - * sends (the last) Read Data sequence followed by the RSP - * sequence in one LLDD operation. Errors during Data - * sequence transmit must not allow RSP sequence to be sent. - */ - NVMET_FCTGTFEAT_CMD_IN_ISR = (1 << 1), - /* Bit 2: When 0, the LLDD is calling the cmd rcv handler - * in a non-isr context, allowing the transport to finish - * op completion in the calling context. When 1, the LLDD - * is calling the cmd rcv handler in an ISR context, - * requiring the transport to transition to a workqueue - * for op completion. - */ - NVMET_FCTGTFEAT_OPDONE_IN_ISR = (1 << 2), - /* Bit 3: When 0, the LLDD is calling the op done handler - * in a non-isr context, allowing the transport to finish - * op completion in the calling context. When 1, the LLDD - * is calling the op done handler in an ISR context, - * requiring the transport to transition to a workqueue - * for op completion. - */ -}; - - -/** - * struct nvmet_fc_target_port - structure used between NVME-FC transport and - * a LLDD to reference a local NVME subsystem port. - * Allocated/created by the nvme_fc_register_targetport() - * transport interface. - * - * Fields with static values for the port. Initialized by the - * port_info struct supplied to the registration call. - * @port_num: NVME-FC transport subsytem port number - * @node_name: FC WWNN for the port - * @port_name: FC WWPN for the port - * @private: pointer to memory allocated alongside the local port - * structure that is specifically for the LLDD to use. - * The length of the buffer corresponds to the target_priv_sz - * value specified in the nvme_fc_target_template supplied by - * the LLDD. - * - * Fields with dynamic values. Values may change base on link state. LLDD - * may reference fields directly to change them. Initialized by the - * port_info struct supplied to the registration call. - * @port_id: FC N_Port_ID currently assigned the port. Upper 8 bits must - * be set to 0. - * @port_state: Operational state of the port. - */ -struct nvmet_fc_target_port { - /* static/read-only fields */ - u32 port_num; - u64 node_name; - u64 port_name; - - void *private; - - /* dynamic fields */ - u32 port_id; - enum nvme_fc_obj_state port_state; -} __aligned(sizeof(u64)); /* alignment for other things alloc'd with */ - - -/** - * struct nvmet_fc_target_template - structure containing static entrypoints - * and operational parameters for an LLDD that supports NVME - * subsystem behavior. Passed by reference in port - * registrations. NVME-FC transport remembers template - * reference and may access it during runtime operation. - * - * Subsystem/Target Transport Entrypoints/Parameters: - * - * @targetport_delete: The LLDD initiates deletion of a targetport via - * nvmet_fc_unregister_targetport(). However, the teardown is - * asynchronous. This routine is called upon the completion of the - * teardown to inform the LLDD that the targetport has been deleted. - * Entrypoint is Mandatory. - * - * @xmt_ls_rsp: Called to transmit the response to a FC-NVME FC-4 LS service. - * The nvmefc_tgt_ls_req structure is the same LLDD-supplied exchange - * structure specified in the nvmet_fc_rcv_ls_req() call made when - * the LS request was received. The structure will fully describe - * the buffers for the response payload and the dma address of the - * payload. The LLDD is to transmit the response (or return a non-zero - * errno status), and upon completion of the transmit, call the - * "done" routine specified in the nvmefc_tgt_ls_req structure - * (argument to done is the ls reqwuest structure itself). - * After calling the done routine, the LLDD shall consider the - * LS handling complete and the nvmefc_tgt_ls_req structure may - * be freed/released. - * Entrypoint is Mandatory. - * - * @fcp_op: Called to perform a data transfer or transmit a response. - * The nvmefc_tgt_fcp_req structure is the same LLDD-supplied - * exchange structure specified in the nvmet_fc_rcv_fcp_req() call - * made when the FCP CMD IU was received. The op field in the - * structure shall indicate the operation for the LLDD to perform - * relative to the io. - * NVMET_FCOP_READDATA operation: the LLDD is to send the - * payload data (described by sglist) to the host in 1 or - * more FC sequences (preferrably 1). Note: the fc-nvme layer - * may call the READDATA operation multiple times for longer - * payloads. - * NVMET_FCOP_WRITEDATA operation: the LLDD is to receive the - * payload data (described by sglist) from the host via 1 or - * more FC sequences (preferrably 1). The LLDD is to generate - * the XFER_RDY IU(s) corresponding to the data being requested. - * Note: the FC-NVME layer may call the WRITEDATA operation - * multiple times for longer payloads. - * NVMET_FCOP_READDATA_RSP operation: the LLDD is to send the - * payload data (described by sglist) to the host in 1 or - * more FC sequences (preferrably 1). If an error occurs during - * payload data transmission, the LLDD is to set the - * nvmefc_tgt_fcp_req fcp_error and transferred_length field, then - * consider the operation complete. On error, the LLDD is to not - * transmit the FCP_RSP iu. If all payload data is transferred - * successfully, the LLDD is to update the nvmefc_tgt_fcp_req - * transferred_length field and may subsequently transmit the - * FCP_RSP iu payload (described by rspbuf, rspdma, rsplen). - * If FCP_CONF is supported, the LLDD is to await FCP_CONF - * reception to confirm the RSP reception by the host. The LLDD - * may retramsit the FCP_RSP iu if necessary per FC-NVME. Upon - * transmission of the FCP_RSP iu if FCP_CONF is not supported, - * or upon success/failure of FCP_CONF if it is supported, the - * LLDD is to set the nvmefc_tgt_fcp_req fcp_error field and - * consider the operation complete. - * NVMET_FCOP_RSP: the LLDD is to transmit the FCP_RSP iu payload - * (described by rspbuf, rspdma, rsplen). If FCP_CONF is - * supported, the LLDD is to await FCP_CONF reception to confirm - * the RSP reception by the host. The LLDD may retramsit the - * FCP_RSP iu if FCP_CONF is not received per FC-NVME. Upon - * transmission of the FCP_RSP iu if FCP_CONF is not supported, - * or upon success/failure of FCP_CONF if it is supported, the - * LLDD is to set the nvmefc_tgt_fcp_req fcp_error field and - * consider the operation complete. - * Upon completing the indicated operation, the LLDD is to set the - * status fields for the operation (tranferred_length and fcp_error - * status) in the request, then call the "done" routine - * indicated in the fcp request. After the operation completes, - * regardless of whether the FCP_RSP iu was successfully transmit, - * the LLDD-supplied exchange structure must remain valid until the - * transport calls the fcp_req_release() callback to return ownership - * of the exchange structure back to the LLDD so that it may be used - * for another fcp command. - * Note: when calling the done routine for READDATA or WRITEDATA - * operations, the fc-nvme layer may immediate convert, in the same - * thread and before returning to the LLDD, the fcp operation to - * the next operation for the fcp io and call the LLDDs fcp_op - * call again. If fields in the fcp request are to be accessed post - * the done call, the LLDD should save their values prior to calling - * the done routine, and inspect the save values after the done - * routine. - * Returns 0 on success, - on failure (Ex: -EIO) - * Entrypoint is Mandatory. - * - * @fcp_abort: Called by the transport to abort an active command. - * The command may be in-between operations (nothing active in LLDD) - * or may have an active WRITEDATA operation pending. The LLDD is to - * initiate the ABTS process for the command and return from the - * callback. The ABTS does not need to be complete on the command. - * The fcp_abort callback inherently cannot fail. After the - * fcp_abort() callback completes, the transport will wait for any - * outstanding operation (if there was one) to complete, then will - * call the fcp_req_release() callback to return the command's - * exchange context back to the LLDD. - * Entrypoint is Mandatory. - * - * @fcp_req_release: Called by the transport to return a nvmefc_tgt_fcp_req - * to the LLDD after all operations on the fcp operation are complete. - * This may be due to the command completing or upon completion of - * abort cleanup. - * Entrypoint is Mandatory. - * - * @defer_rcv: Called by the transport to signal the LLLD that it has - * begun processing of a previously received NVME CMD IU. The LLDD - * is now free to re-use the rcv buffer associated with the - * nvmefc_tgt_fcp_req. - * Entrypoint is Optional. - * - * @max_hw_queues: indicates the maximum number of hw queues the LLDD - * supports for cpu affinitization. - * Value is Mandatory. Must be at least 1. - * - * @max_sgl_segments: indicates the maximum number of sgl segments supported - * by the LLDD - * Value is Mandatory. Must be at least 1. Recommend at least 256. - * - * @max_dif_sgl_segments: indicates the maximum number of sgl segments - * supported by the LLDD for DIF operations. - * Value is Mandatory. Must be at least 1. Recommend at least 256. - * - * @dma_boundary: indicates the dma address boundary where dma mappings - * will be split across. - * Value is Mandatory. Typical value is 0xFFFFFFFF to split across - * 4Gig address boundarys - * - * @target_features: The LLDD sets bits in this field to correspond to - * optional features that are supported by the LLDD. - * Refer to the NVMET_FCTGTFEAT_xxx values. - * Value is Mandatory. Allowed to be zero. - * - * @target_priv_sz: The LLDD sets this field to the amount of additional - * memory that it would like fc nvme layer to allocate on the LLDD's - * behalf whenever a targetport is allocated. The additional memory - * area solely for the of the LLDD and its location is specified by - * the targetport->private pointer. - * Value is Mandatory. Allowed to be zero. - */ -struct nvmet_fc_target_template { - void (*targetport_delete)(struct nvmet_fc_target_port *tgtport); - int (*xmt_ls_rsp)(struct nvmet_fc_target_port *tgtport, - struct nvmefc_tgt_ls_req *tls_req); - int (*fcp_op)(struct nvmet_fc_target_port *tgtport, - struct nvmefc_tgt_fcp_req *fcpreq); - void (*fcp_abort)(struct nvmet_fc_target_port *tgtport, - struct nvmefc_tgt_fcp_req *fcpreq); - void (*fcp_req_release)(struct nvmet_fc_target_port *tgtport, - struct nvmefc_tgt_fcp_req *fcpreq); - void (*defer_rcv)(struct nvmet_fc_target_port *tgtport, - struct nvmefc_tgt_fcp_req *fcpreq); - - u32 max_hw_queues; - u16 max_sgl_segments; - u16 max_dif_sgl_segments; - u64 dma_boundary; - - u32 target_features; - - u32 target_priv_sz; -}; - - -int nvmet_fc_register_targetport(struct nvmet_fc_port_info *portinfo, - struct nvmet_fc_target_template *template, - struct device *dev, - struct nvmet_fc_target_port **tgtport_p); - -int nvmet_fc_unregister_targetport(struct nvmet_fc_target_port *tgtport); - -int nvmet_fc_rcv_ls_req(struct nvmet_fc_target_port *tgtport, - struct nvmefc_tgt_ls_req *lsreq, - void *lsreqbuf, u32 lsreqbuf_len); - -int nvmet_fc_rcv_fcp_req(struct nvmet_fc_target_port *tgtport, - struct nvmefc_tgt_fcp_req *fcpreq, - void *cmdiubuf, u32 cmdiubuf_len); - -void nvmet_fc_rcv_fcp_abort(struct nvmet_fc_target_port *tgtport, - struct nvmefc_tgt_fcp_req *fcpreq); - -#endif /* _NVME_FC_DRIVER_H */ diff --git a/include/linux/nvme-fc.h b/include/linux/nvme-fc.h deleted file mode 100644 index 36cca93..0000000 --- a/include/linux/nvme-fc.h +++ /dev/null @@ -1,357 +0,0 @@ -/* - * Copyright (c) 2016 Avago Technologies. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful. - * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, - * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A - * PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE DISCLAIMED, EXCEPT TO - * THE EXTENT THAT SUCH DISCLAIMERS ARE HELD TO BE LEGALLY INVALID. - * See the GNU General Public License for more details, a copy of which - * can be found in the file COPYING included with this package - * - */ - -/* - * This file contains definitions relative to FC-NVME r1.14 (16-020vB). - * The fcnvme_lsdesc_cr_assoc_cmd struct reflects expected r1.16 content. - */ - -#ifndef _NVME_FC_H -#define _NVME_FC_H 1 - - -#define NVME_CMD_SCSI_ID 0xFD -#define NVME_CMD_FC_ID FC_TYPE_NVME - -/* FC-NVME Cmd IU Flags */ -#define FCNVME_CMD_FLAGS_DIRMASK 0x03 -#define FCNVME_CMD_FLAGS_WRITE 0x01 -#define FCNVME_CMD_FLAGS_READ 0x02 - -struct nvme_fc_cmd_iu { - __u8 scsi_id; - __u8 fc_id; - __be16 iu_len; - __u8 rsvd4[3]; - __u8 flags; - __be64 connection_id; - __be32 csn; - __be32 data_len; - struct nvme_command sqe; - __be32 rsvd88[2]; -}; - -#define NVME_FC_SIZEOF_ZEROS_RSP 12 - -enum { - FCNVME_SC_SUCCESS = 0, - FCNVME_SC_INVALID_FIELD = 1, - FCNVME_SC_INVALID_CONNID = 2, -}; - -struct nvme_fc_ersp_iu { - __u8 status_code; - __u8 rsvd1; - __be16 iu_len; - __be32 rsn; - __be32 xfrd_len; - __be32 rsvd12; - struct nvme_completion cqe; - /* for now - no additional payload */ -}; - - -/* FC-NVME Link Services */ -enum { - FCNVME_LS_RSVD = 0, - FCNVME_LS_RJT = 1, - FCNVME_LS_ACC = 2, - FCNVME_LS_CREATE_ASSOCIATION = 3, - FCNVME_LS_CREATE_CONNECTION = 4, - FCNVME_LS_DISCONNECT = 5, -}; - -/* FC-NVME Link Service Descriptors */ -enum { - FCNVME_LSDESC_RSVD = 0x0, - FCNVME_LSDESC_RQST = 0x1, - FCNVME_LSDESC_RJT = 0x2, - FCNVME_LSDESC_CREATE_ASSOC_CMD = 0x3, - FCNVME_LSDESC_CREATE_CONN_CMD = 0x4, - FCNVME_LSDESC_DISCONN_CMD = 0x5, - FCNVME_LSDESC_CONN_ID = 0x6, - FCNVME_LSDESC_ASSOC_ID = 0x7, -}; - - -/* ********** start of Link Service Descriptors ********** */ - - -/* - * fills in length of a descriptor. Struture minus descriptor header - */ -static inline __be32 fcnvme_lsdesc_len(size_t sz) -{ - return cpu_to_be32(sz - (2 * sizeof(u32))); -} - -struct fcnvme_ls_rqst_w0 { - u8 ls_cmd; /* FCNVME_LS_xxx */ - u8 zeros[3]; -}; - -/* FCNVME_LSDESC_RQST */ -struct fcnvme_lsdesc_rqst { - __be32 desc_tag; /* FCNVME_LSDESC_xxx */ - __be32 desc_len; - struct fcnvme_ls_rqst_w0 w0; - __be32 rsvd12; -}; - -/* FC-NVME LS RJT reason_code values */ -enum fcnvme_ls_rjt_reason { - FCNVME_RJT_RC_NONE = 0, - /* no reason - not to be sent */ - - FCNVME_RJT_RC_INVAL = 0x01, - /* invalid NVMe_LS command code */ - - FCNVME_RJT_RC_LOGIC = 0x03, - /* logical error */ - - FCNVME_RJT_RC_UNAB = 0x09, - /* unable to perform command request */ - - FCNVME_RJT_RC_UNSUP = 0x0b, - /* command not supported */ - - FCNVME_RJT_RC_INPROG = 0x0e, - /* command already in progress */ - - FCNVME_RJT_RC_INV_ASSOC = 0x40, - /* Invalid Association ID*/ - - FCNVME_RJT_RC_INV_CONN = 0x41, - /* Invalid Connection ID*/ - - FCNVME_RJT_RC_VENDOR = 0xff, - /* vendor specific error */ -}; - -/* FC-NVME LS RJT reason_explanation values */ -enum fcnvme_ls_rjt_explan { - FCNVME_RJT_EXP_NONE = 0x00, - /* No additional explanation */ - - FCNVME_RJT_EXP_OXID_RXID = 0x17, - /* invalid OX_ID-RX_ID combination */ - - FCNVME_RJT_EXP_INSUF_RES = 0x29, - /* insufficient resources */ - - FCNVME_RJT_EXP_UNAB_DATA = 0x2a, - /* unable to supply requested data */ - - FCNVME_RJT_EXP_INV_LEN = 0x2d, - /* Invalid payload length */ -}; - -/* FCNVME_LSDESC_RJT */ -struct fcnvme_lsdesc_rjt { - __be32 desc_tag; /* FCNVME_LSDESC_xxx */ - __be32 desc_len; - u8 rsvd8; - - /* - * Reject reason and explanaction codes are generic - * to ELs's from LS-3. - */ - u8 reason_code; /* fcnvme_ls_rjt_reason */ - u8 reason_explanation; /* fcnvme_ls_rjt_explan */ - - u8 vendor; - __be32 rsvd12; -}; - - -#define FCNVME_ASSOC_HOSTNQN_LEN 256 -#define FCNVME_ASSOC_SUBNQN_LEN 256 - -/* FCNVME_LSDESC_CREATE_ASSOC_CMD */ -struct fcnvme_lsdesc_cr_assoc_cmd { - __be32 desc_tag; /* FCNVME_LSDESC_xxx */ - __be32 desc_len; - __be16 ersp_ratio; - __be16 rsvd10; - __be32 rsvd12[9]; - __be16 cntlid; - __be16 sqsize; - __be32 rsvd52; - uuid_t hostid; - u8 hostnqn[FCNVME_ASSOC_HOSTNQN_LEN]; - u8 subnqn[FCNVME_ASSOC_SUBNQN_LEN]; - __be32 rsvd584[108]; /* pad to 1016 bytes, - * which makes overall LS rqst - * payload 1024 bytes - */ -}; - -#define FCNVME_LSDESC_CRA_CMD_DESC_MINLEN \ - offsetof(struct fcnvme_lsdesc_cr_assoc_cmd, rsvd584) - -#define FCNVME_LSDESC_CRA_CMD_DESC_MIN_DESCLEN \ - (FCNVME_LSDESC_CRA_CMD_DESC_MINLEN - \ - offsetof(struct fcnvme_lsdesc_cr_assoc_cmd, ersp_ratio)) - - - -/* FCNVME_LSDESC_CREATE_CONN_CMD */ -struct fcnvme_lsdesc_cr_conn_cmd { - __be32 desc_tag; /* FCNVME_LSDESC_xxx */ - __be32 desc_len; - __be16 ersp_ratio; - __be16 rsvd10; - __be32 rsvd12[9]; - __be16 qid; - __be16 sqsize; - __be32 rsvd52; -}; - -/* Disconnect Scope Values */ -enum { - FCNVME_DISCONN_ASSOCIATION = 0, - FCNVME_DISCONN_CONNECTION = 1, -}; - -/* FCNVME_LSDESC_DISCONN_CMD */ -struct fcnvme_lsdesc_disconn_cmd { - __be32 desc_tag; /* FCNVME_LSDESC_xxx */ - __be32 desc_len; - u8 rsvd8[3]; - /* note: scope is really a 1 bit field */ - u8 scope; /* FCNVME_DISCONN_xxx */ - __be32 rsvd12; - __be64 id; -}; - -/* FCNVME_LSDESC_CONN_ID */ -struct fcnvme_lsdesc_conn_id { - __be32 desc_tag; /* FCNVME_LSDESC_xxx */ - __be32 desc_len; - __be64 connection_id; -}; - -/* FCNVME_LSDESC_ASSOC_ID */ -struct fcnvme_lsdesc_assoc_id { - __be32 desc_tag; /* FCNVME_LSDESC_xxx */ - __be32 desc_len; - __be64 association_id; -}; - -/* r_ctl values */ -enum { - FCNVME_RS_RCTL_DATA = 1, - FCNVME_RS_RCTL_XFER_RDY = 5, - FCNVME_RS_RCTL_RSP = 8, -}; - - -/* ********** start of Link Services ********** */ - - -/* FCNVME_LS_RJT */ -struct fcnvme_ls_rjt { - struct fcnvme_ls_rqst_w0 w0; - __be32 desc_list_len; - struct fcnvme_lsdesc_rqst rqst; - struct fcnvme_lsdesc_rjt rjt; -}; - -/* FCNVME_LS_ACC */ -struct fcnvme_ls_acc_hdr { - struct fcnvme_ls_rqst_w0 w0; - __be32 desc_list_len; - struct fcnvme_lsdesc_rqst rqst; - /* Followed by cmd-specific ACC descriptors, see next definitions */ -}; - -/* FCNVME_LS_CREATE_ASSOCIATION */ -struct fcnvme_ls_cr_assoc_rqst { - struct fcnvme_ls_rqst_w0 w0; - __be32 desc_list_len; - struct fcnvme_lsdesc_cr_assoc_cmd assoc_cmd; -}; - -#define FCNVME_LSDESC_CRA_RQST_MINLEN \ - (offsetof(struct fcnvme_ls_cr_assoc_rqst, assoc_cmd) + \ - FCNVME_LSDESC_CRA_CMD_DESC_MINLEN) - -#define FCNVME_LSDESC_CRA_RQST_MIN_LISTLEN \ - FCNVME_LSDESC_CRA_CMD_DESC_MINLEN - - -struct fcnvme_ls_cr_assoc_acc { - struct fcnvme_ls_acc_hdr hdr; - struct fcnvme_lsdesc_assoc_id associd; - struct fcnvme_lsdesc_conn_id connectid; -}; - - -/* FCNVME_LS_CREATE_CONNECTION */ -struct fcnvme_ls_cr_conn_rqst { - struct fcnvme_ls_rqst_w0 w0; - __be32 desc_list_len; - struct fcnvme_lsdesc_assoc_id associd; - struct fcnvme_lsdesc_cr_conn_cmd connect_cmd; -}; - -struct fcnvme_ls_cr_conn_acc { - struct fcnvme_ls_acc_hdr hdr; - struct fcnvme_lsdesc_conn_id connectid; -}; - -/* FCNVME_LS_DISCONNECT */ -struct fcnvme_ls_disconnect_rqst { - struct fcnvme_ls_rqst_w0 w0; - __be32 desc_list_len; - struct fcnvme_lsdesc_assoc_id associd; - struct fcnvme_lsdesc_disconn_cmd discon_cmd; -}; - -struct fcnvme_ls_disconnect_acc { - struct fcnvme_ls_acc_hdr hdr; -}; - - -/* - * Yet to be defined in FC-NVME: - */ -#define NVME_FC_CONNECT_TIMEOUT_SEC 2 /* 2 seconds */ -#define NVME_FC_LS_TIMEOUT_SEC 2 /* 2 seconds */ -#define NVME_FC_TGTOP_TIMEOUT_SEC 2 /* 2 seconds */ - -/* - * TRADDR string must be of form "nn-<16hexdigits>:pn-<16hexdigits>" - * the string is allowed to be specified with or without a "0x" prefix - * infront of the <16hexdigits>. Without is considered the "min" string - * and with is considered the "max" string. The hexdigits may be upper - * or lower case. - */ -#define NVME_FC_TRADDR_NNLEN 3 /* "?n-" */ -#define NVME_FC_TRADDR_OXNNLEN 5 /* "?n-0x" */ -#define NVME_FC_TRADDR_HEXNAMELEN 16 -#define NVME_FC_TRADDR_MINLENGTH \ - (2 * (NVME_FC_TRADDR_NNLEN + NVME_FC_TRADDR_HEXNAMELEN) + 1) -#define NVME_FC_TRADDR_MAXLENGTH \ - (2 * (NVME_FC_TRADDR_OXNNLEN + NVME_FC_TRADDR_HEXNAMELEN) + 1) -#define NVME_FC_TRADDR_MIN_PN_OFFSET \ - (NVME_FC_TRADDR_NNLEN + NVME_FC_TRADDR_HEXNAMELEN + 1) -#define NVME_FC_TRADDR_MAX_PN_OFFSET \ - (NVME_FC_TRADDR_OXNNLEN + NVME_FC_TRADDR_HEXNAMELEN + 1) - - -#endif /* _NVME_FC_H */