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376a3960e5
The fnic NVMe/FC code is guarded with IS_ENABLED(CONFIG_NVME_FC). That also evaluates true when NVME_FC is built as a module. When fnic is built into vmlinux and NVME_FC=m, fnic_nvme.o still references the NVMe/FC transport helpers even though those helpers are not reachable from built-in code. The final vmlinux link then fails with undefined nvme_fc_* symbols. Use IS_REACHABLE(CONFIG_NVME_FC) for the fnic NVMe/FC implementation and prototypes so built-in fnic uses the disabled stubs unless the NVMe/FC transport is reachable. Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202608092246.XZe7Hlrt-lkp@intel.com/ Reviewed-by: Sesidhar Baddela <sebaddel@cisco.com> Reviewed-by: Arulprabhu Ponnusamy <arulponn@cisco.com> Reviewed-by: Gian Carlo Boffa <gcboffa@cisco.com> Reviewed-by: Arun Easi <aeasi@cisco.com> Signed-off-by: Karan Tilak Kumar <kartilak@cisco.com> Link: https://patch.msgid.link/20260810110627.4521-1-kartilak@cisco.com Signed-off-by: Martin K. Petersen (Oracle) <mkp@kernel.org>
215 lines
7.2 KiB
C
215 lines
7.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright 2008 Cisco Systems, Inc. All rights reserved.
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* Copyright 2007 Nuova Systems, Inc. All rights reserved.
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*/
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#ifndef _FNIC_NVME_H
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#define _FNIC_NVME_H
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#include "fdls_fc.h"
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#include "fnic_fdls.h"
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#define FNIC_NVME_TPORT_REMOVE_WAIT (5 * 1000)
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#define FNIC_NVME_TPORT_LIST_EMPTY_WAIT (FNIC_NVME_TPORT_REMOVE_WAIT * 2)
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#define FNIC_TPORT_CLEANUP_WAIT_COUNT 8
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#define FNIC_NVME_LPORT_REMOVE_WAIT (2 * 60 * 1000)
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#define FNIC_LS_REQ_FLAGS_NONE 0x0
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#define FNIC_LS_REQ_FLAGS_ABORTED 0x1
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#define FNIC_LS_REQ_FLAGS_DONE 0x2
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#define FNIC_LS_REQ_ABORT_COMPLETED 0x4
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#define FNIC_STATUS_LS_REQ_ABORTED 0x1
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#define FNIC_LS_REQ_MIN_TMO_SECS (2)
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#define FNIC_LS_REQ_MAX_TMO_SECS (5)
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#define FNIC_NVME_ADMIN_IO_TIMEOUT 30000 /* mSec */
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#define FNIC_NVME_NO_FREE_TAG (0xFFFF)
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#define FNIC_LS_REQ_TMO_MSECS(tmo) (((tmo >= FNIC_LS_REQ_MIN_TMO_SECS) && \
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(tmo <= FNIC_LS_REQ_MAX_TMO_SECS)) ? \
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(tmo * 1000) : (FNIC_LS_REQ_MIN_TMO_SECS * 1000))
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#define IS_ADMIN_IO(_io_req) \
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(NVME_CMD_FLAGS(_io_req) & FNIC_NVME_ADMIN_IO_TIMER_PENDING)
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extern unsigned int nvme_max_ios_to_process;
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extern unsigned int nvme_dev_loss_tmo;
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extern spinlock_t fnic_list_lock;
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enum nvfnic_lsreq_state_e {
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FNIC_LS_REQ_CMD_INIT = 0,
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FNIC_LS_REQ_CMD_PENDING,
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FNIC_LS_REQ_CMD_ABTS_PENDING,
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FNIC_LS_REQ_CMD_COMPLETE,
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FNIC_LS_REQ_ABTS_COMPLETE,
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FNIC_LS_REQ_CMD_ABTS_STARTED,
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};
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struct fnic_nvme_tag {
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struct list_head free_list;
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int tag_id;
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};
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struct nvfnic_ls_req {
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struct list_head list;
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struct nvmefc_ls_req *ls_req;
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uint16_t oxid;
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struct timer_list ls_req_timer;
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struct fnic *fnic;
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struct fnic_tport_s *tport;
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int state;
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unsigned int flags;
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};
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#if IS_REACHABLE(CONFIG_NVME_FC)
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int nvfnic_nvme_io_done_handler(void *arg);
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struct fnic_io_req *nvfnic_find_io_req_by_tag(struct fnic *fnic, uint16_t tag);
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void nvfnic_reset_fcpio_tag_pool(struct fnic_iport_s *iport);
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int nvfnic_add_lport(struct fnic *fnic);
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void nvfnic_fcpio_abort(struct nvme_fc_local_port *lport,
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struct nvme_fc_remote_port *rport,
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void *hw_queue_handle, struct nvmefc_fcp_req *fcp_req);
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void nvfnic_remote_port_delete(struct nvme_fc_remote_port *rport);
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void nvfnic_local_port_delete(struct nvme_fc_local_port *lport);
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int nvfnic_dma_map_sgl(struct fnic *fnic, struct fnic_io_req *io_req,
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int sg_count);
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void nvfnic_dma_unmap_sgl(struct fnic *fnic, struct fnic_io_req *io_req);
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int nvfnic_get_sg_count(struct fnic_io_req *io_req);
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void nvfnic_release_nvme_ioreq_buf(struct fnic_iport_s *iport,
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struct fnic_io_req *io_req);
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void nvfnic_dump_nvcmd(struct fnic_io_req *io_req, uint8_t flags);
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bool _cleanup_tport_io(struct sbitmap *map, unsigned int tag, void *data);
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void nvfnic_flush_nvme_io_list(struct fnic *fnic);
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void nvfnic_fcpio_cmpl(struct fnic_io_req *io_req);
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bool nvfnic_transport_ready(struct fnic_iport_s *iport,
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struct fnic_tport_s *tport);
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int nvfnic_alloc_fcpio_tag(struct fnic_iport_s *iport,
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struct fnic_io_req *io_req);
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int nvfnic_queuecommand(struct fnic_io_req *io_req);
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void nvfnic_free_fcpio_tag(struct fnic_iport_s *iport,
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struct fnic_io_req *io_req);
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void nvfnic_delete_lport(struct fnic_iport_s *iport);
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int nvfnic_add_tport(struct fnic *fnic, struct fnic_tport_s *tport,
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unsigned long flags);
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void nvfnic_cleanup_all_nvme_ios(struct fnic *fnic);
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void nvfnic_delete_tport_work(struct work_struct *work);
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void nvfnic_delete_tport(struct fnic_iport_s *iport,
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struct fnic_tport_s *tport, unsigned long flags);
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void nvfnic_fcpio_nvme_fast_cmpl_handler(struct fnic *fnic,
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struct fcpio_fw_req *desc);
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void nvfnic_ls_rsp_recv(struct fnic_iport_s *iport,
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struct fc_frame_header *fchdr, int len);
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void nvfnic_process_ls_abts_rsp(struct fnic_iport_s *iport,
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struct fc_frame_header *fchdr);
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void nvfnic_admin_io_timeout(struct timer_list *t);
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void nvfnic_fcpio_nvme_itmf_cmpl_handler(struct fnic *fnic,
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struct fcpio_fw_req *desc);
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void nvfnic_nvme_zero_devloss_tports(struct fnic *fnic);
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bool nvfnic_queue_abort_io_req(struct fnic *fnic, int tag, u32 task_req,
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struct fnic_io_req *io_req);
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void nvfnic_ls_req_abort(struct nvme_fc_local_port *lport,
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struct nvme_fc_remote_port *rport,
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struct nvmefc_ls_req *lsreq);
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int nvfnic_create_queue(struct nvme_fc_local_port *lport, unsigned int idx,
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u16 size, void **handle);
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int nvfnic_ls_req_send(struct nvme_fc_local_port *lport,
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struct nvme_fc_remote_port *rport,
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struct nvmefc_ls_req *ls_req);
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void nvfnic_ls_req_timeout(struct timer_list *t);
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uint16_t nvfnic_alloc_ls_req_oxid(struct fnic_iport_s *iport);
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struct nvfnic_ls_req *nvfnic_find_ls_req(struct fnic_tport_s *tport,
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uint16_t oxid);
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void nvfnic_terminate_tport_ios(struct fnic *fnic, struct fnic_tport_s *tport);
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bool _terminate_tport_ios(struct sbitmap *map, unsigned int tag, void *data);
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bool _cleanup_all_nvme_io(struct sbitmap *map, unsigned int tag, void *data);
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void nvfnic_cleanup_all_nvme_ios(struct fnic *fnic);
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int nvfnic_fcpio_send(struct nvme_fc_local_port *lport,
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struct nvme_fc_remote_port *rport, void *hw_queue_handle,
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struct nvmefc_fcp_req *fcp_req);
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void nvfnic_fcpio_ersp_cmpl_handler(struct fnic *fnic,
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struct fcpio_fw_req *desc, int sw_flag);
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void nvfnic_terminate_tport_ls_reqs(struct fnic *fnic,
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struct fnic_tport_s *tport);
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void nvfnic_terminate_tport_admin_ios(struct fnic *fnic,
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struct fnic_tport_s *tport);
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void nvfnic_cleanup_tport_io(struct fnic *fnic, struct fnic_tport_s *tport);
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void nvfnic_nvme_unload(struct fnic *fnic);
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int nvfnic_get_nvmef_info(struct fnic *fnic, struct fnic_nvmef_info *info);
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void nvfnic_exch_reset(struct fnic_iport_s *iport, struct fnic_tport_s *tport);
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void nvfnic_nvme_iodone_work(struct work_struct *work);
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#else
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static inline int nvfnic_add_lport(struct fnic *fnic)
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{
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return -EOPNOTSUPP;
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}
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static inline void nvfnic_nvme_unload(struct fnic *fnic)
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{
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}
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static inline void nvfnic_flush_nvme_io_list(struct fnic *fnic)
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{
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}
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static inline void nvfnic_nvme_iodone_work(struct work_struct *work)
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{
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}
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static inline void nvfnic_exch_reset(struct fnic_iport_s *iport,
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struct fnic_tport_s *tport)
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{
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}
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static inline void nvfnic_process_ls_abts_rsp(struct fnic_iport_s *iport,
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struct fc_frame_header *fchdr)
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{
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}
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static inline void nvfnic_ls_rsp_recv(struct fnic_iport_s *iport,
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struct fc_frame_header *fchdr, int len)
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{
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}
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static inline int nvfnic_add_tport(struct fnic *fnic,
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struct fnic_tport_s *tport,
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unsigned long flags)
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{
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return 0;
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}
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static inline void nvfnic_delete_tport(struct fnic_iport_s *iport,
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struct fnic_tport_s *tport,
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unsigned long flags)
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{
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}
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static inline void nvfnic_cleanup_all_nvme_ios(struct fnic *fnic)
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{
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}
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static inline void nvfnic_fcpio_nvme_fast_cmpl_handler(struct fnic *fnic,
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struct fcpio_fw_req *desc)
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{
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}
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static inline void nvfnic_fcpio_ersp_cmpl_handler(struct fnic *fnic,
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struct fcpio_fw_req *desc,
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int sw_flag)
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{
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}
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static inline void nvfnic_fcpio_nvme_itmf_cmpl_handler(struct fnic *fnic,
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struct fcpio_fw_req *desc)
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{
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}
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static inline int nvfnic_get_nvmef_info(struct fnic *fnic,
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struct fnic_nvmef_info *info)
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{
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return 0;
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}
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#endif
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extern const char *fnic_fcpio_status_to_str(unsigned int status);
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#endif /* _FNIC_NVME_H */
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