lpfc: Refactor nvmet_rcv_ctx to create lpfc_async_xchg_ctx

[mirror_ubuntu-jammy-kernel.git] / drivers / scsi / lpfc / lpfc_nvme.h

diff --git a/drivers/scsi/lpfc/lpfc_nvme.h b/drivers/scsi/lpfc/lpfc_nvme.h
index 593c48ff634e9959af104207f96f4628161b56b5..be7d262f8cf3f41a341afb7bbf7aafdbaf173dbd 100644 (file)
--- a/drivers/scsi/lpfc/lpfc_nvme.h
+++ b/drivers/scsi/lpfc/lpfc_nvme.h
@@ -21,6 +21,10 @@
  * included with this package.                                     *
  ********************************************************************/
 
+#include <linux/nvme.h>
+#include <linux/nvme-fc-driver.h>
+#include <linux/nvme-fc.h>
+
 #define LPFC_NVME_DEFAULT_SEGS         (64 + 1)        /* 256K IOs */
 
 #define LPFC_NVME_ERSP_LEN             0x20
@@ -74,3 +78,146 @@ struct lpfc_nvme_rport {
 struct lpfc_nvme_fcpreq_priv {
        struct lpfc_io_buf *nvme_buf;
 };
+
+
+#define LPFC_NVMET_DEFAULT_SEGS                (64 + 1)        /* 256K IOs */
+#define LPFC_NVMET_RQE_MIN_POST                128
+#define LPFC_NVMET_RQE_DEF_POST                512
+#define LPFC_NVMET_RQE_DEF_COUNT       2048
+#define LPFC_NVMET_SUCCESS_LEN         12
+
+#define LPFC_NVMET_MRQ_AUTO            0
+#define LPFC_NVMET_MRQ_MAX             16
+
+#define LPFC_NVMET_WAIT_TMO            (5 * MSEC_PER_SEC)
+
+/* Used for NVME Target */
+struct lpfc_nvmet_tgtport {
+       struct lpfc_hba *phba;
+       struct completion *tport_unreg_cmp;
+
+       /* Stats counters - lpfc_nvmet_unsol_ls_buffer */
+       atomic_t rcv_ls_req_in;
+       atomic_t rcv_ls_req_out;
+       atomic_t rcv_ls_req_drop;
+       atomic_t xmt_ls_abort;
+       atomic_t xmt_ls_abort_cmpl;
+
+       /* Stats counters - lpfc_nvmet_xmt_ls_rsp */
+       atomic_t xmt_ls_rsp;
+       atomic_t xmt_ls_drop;
+
+       /* Stats counters - lpfc_nvmet_xmt_ls_rsp_cmp */
+       atomic_t xmt_ls_rsp_error;
+       atomic_t xmt_ls_rsp_aborted;
+       atomic_t xmt_ls_rsp_xb_set;
+       atomic_t xmt_ls_rsp_cmpl;
+
+       /* Stats counters - lpfc_nvmet_unsol_fcp_buffer */
+       atomic_t rcv_fcp_cmd_in;
+       atomic_t rcv_fcp_cmd_out;
+       atomic_t rcv_fcp_cmd_drop;
+       atomic_t rcv_fcp_cmd_defer;
+       atomic_t xmt_fcp_release;
+
+       /* Stats counters - lpfc_nvmet_xmt_fcp_op */
+       atomic_t xmt_fcp_drop;
+       atomic_t xmt_fcp_read_rsp;
+       atomic_t xmt_fcp_read;
+       atomic_t xmt_fcp_write;
+       atomic_t xmt_fcp_rsp;
+
+       /* Stats counters - lpfc_nvmet_xmt_fcp_op_cmp */
+       atomic_t xmt_fcp_rsp_xb_set;
+       atomic_t xmt_fcp_rsp_cmpl;
+       atomic_t xmt_fcp_rsp_error;
+       atomic_t xmt_fcp_rsp_aborted;
+       atomic_t xmt_fcp_rsp_drop;
+
+       /* Stats counters - lpfc_nvmet_xmt_fcp_abort */
+       atomic_t xmt_fcp_xri_abort_cqe;
+       atomic_t xmt_fcp_abort;
+       atomic_t xmt_fcp_abort_cmpl;
+       atomic_t xmt_abort_sol;
+       atomic_t xmt_abort_unsol;
+       atomic_t xmt_abort_rsp;
+       atomic_t xmt_abort_rsp_error;
+
+       /* Stats counters - defer IO */
+       atomic_t defer_ctx;
+       atomic_t defer_fod;
+       atomic_t defer_wqfull;
+};
+
+struct lpfc_nvmet_ctx_info {
+       struct list_head nvmet_ctx_list;
+       spinlock_t      nvmet_ctx_list_lock; /* lock per CPU */
+       struct lpfc_nvmet_ctx_info *nvmet_ctx_next_cpu;
+       struct lpfc_nvmet_ctx_info *nvmet_ctx_start_cpu;
+       uint16_t        nvmet_ctx_list_cnt;
+       char pad[16];  /* pad to a cache-line */
+};
+
+/* This retrieves the context info associated with the specified cpu / mrq */
+#define lpfc_get_ctx_list(phba, cpu, mrq)  \
+       (phba->sli4_hba.nvmet_ctx_info + ((cpu * phba->cfg_nvmet_mrq) + mrq))
+
+struct lpfc_async_xchg_ctx {
+       union {
+               struct nvmefc_tgt_fcp_req fcp_req;
+       } hdlrctx;
+       struct list_head list;
+       struct lpfc_hba *phba;
+       struct nvmefc_ls_req *ls_req;
+       struct nvmefc_ls_rsp ls_rsp;
+       struct lpfc_iocbq *wqeq;
+       struct lpfc_iocbq *abort_wqeq;
+       spinlock_t ctxlock; /* protect flag access */
+       uint32_t sid;
+       uint32_t offset;
+       uint16_t oxid;
+       uint16_t size;
+       uint16_t entry_cnt;
+       uint16_t cpu;
+       uint16_t idx;
+       uint16_t state;
+       /* States */
+#define LPFC_NVMET_STE_LS_RCV          1
+#define LPFC_NVMET_STE_LS_ABORT                2
+#define LPFC_NVMET_STE_LS_RSP          3
+#define LPFC_NVMET_STE_RCV             4
+#define LPFC_NVMET_STE_DATA            5
+#define LPFC_NVMET_STE_ABORT           6
+#define LPFC_NVMET_STE_DONE            7
+#define LPFC_NVMET_STE_FREE            0xff
+       uint16_t flag;
+#define LPFC_NVMET_IO_INP              0x1  /* IO is in progress on exchange */
+#define LPFC_NVMET_ABORT_OP            0x2  /* Abort WQE issued on exchange */
+#define LPFC_NVMET_XBUSY               0x4  /* XB bit set on IO cmpl */
+#define LPFC_NVMET_CTX_RLS             0x8  /* ctx free requested */
+#define LPFC_NVMET_ABTS_RCV            0x10  /* ABTS received on exchange */
+#define LPFC_NVMET_CTX_REUSE_WQ                0x20  /* ctx reused via WQ */
+#define LPFC_NVMET_DEFER_WQFULL                0x40  /* Waiting on a free WQE */
+#define LPFC_NVMET_TNOTIFY             0x80  /* notify transport of abts */
+       struct rqb_dmabuf *rqb_buffer;
+       struct lpfc_nvmet_ctxbuf *ctxbuf;
+       struct lpfc_sli4_hdw_queue *hdwq;
+
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+       uint64_t ts_isr_cmd;
+       uint64_t ts_cmd_nvme;
+       uint64_t ts_nvme_data;
+       uint64_t ts_data_wqput;
+       uint64_t ts_isr_data;
+       uint64_t ts_data_nvme;
+       uint64_t ts_nvme_status;
+       uint64_t ts_status_wqput;
+       uint64_t ts_isr_status;
+       uint64_t ts_status_nvme;
+#endif
+};
+
+
+/* routines found in lpfc_nvme.c */
+
+/* routines found in lpfc_nvmet.c */