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Diffstat (limited to 'drivers/scsi/lpfc/lpfc_nvme.h')
-rw-r--r--drivers/scsi/lpfc/lpfc_nvme.h103
1 files changed, 103 insertions, 0 deletions
diff --git a/drivers/scsi/lpfc/lpfc_nvme.h b/drivers/scsi/lpfc/lpfc_nvme.h
new file mode 100644
index 000000000000..b2fae5e813f8
--- /dev/null
+++ b/drivers/scsi/lpfc/lpfc_nvme.h
@@ -0,0 +1,103 @@
+/*******************************************************************
+ * This file is part of the Emulex Linux Device Driver for *
+ * Fibre Channel Host Bus Adapters. *
+ * Copyright (C) 2017 Broadcom. All Rights Reserved. The term *
+ * “Broadcom” refers to Broadcom Limited and/or its subsidiaries. *
+ * Copyright (C) 2004-2016 Emulex. All rights reserved. *
+ * EMULEX and SLI are trademarks of Emulex. *
+ * www.broadcom.com *
+ * Portions Copyright (C) 2004-2005 Christoph Hellwig *
+ * *
+ * 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. *
+ ********************************************************************/
+
+#define LPFC_NVME_MIN_SEGS 16
+#define LPFC_NVME_DEFAULT_SEGS 66 /* 256K IOs - 64 + 2 */
+#define LPFC_NVME_MAX_SEGS 510
+#define LPFC_NVMET_MIN_POSTBUF 16
+#define LPFC_NVMET_DEFAULT_POSTBUF 1024
+#define LPFC_NVMET_MAX_POSTBUF 4096
+#define LPFC_NVME_WQSIZE 256
+
+#define LPFC_NVME_ERSP_LEN 0x20
+
+struct lpfc_nvme_qhandle {
+ uint32_t index; /* WQ index to use */
+ uint32_t qidx; /* queue index passed to create */
+ uint32_t cpu_id; /* current cpu id at time of create */
+};
+
+/* Declare nvme-based local and remote port definitions. */
+struct lpfc_nvme_lport {
+ struct lpfc_vport *vport;
+ struct list_head rport_list;
+ struct completion lport_unreg_done;
+ /* Add sttats counters here */
+};
+
+struct lpfc_nvme_rport {
+ struct list_head list;
+ struct lpfc_nvme_lport *lport;
+ struct nvme_fc_remote_port *remoteport;
+ struct lpfc_nodelist *ndlp;
+ struct completion rport_unreg_done;
+};
+
+struct lpfc_nvme_buf {
+ struct list_head list;
+ struct nvmefc_fcp_req *nvmeCmd;
+ struct lpfc_nvme_rport *nrport;
+
+ uint32_t timeout;
+
+ uint16_t flags; /* TBD convert exch_busy to flags */
+#define LPFC_SBUF_XBUSY 0x1 /* SLI4 hba reported XB on WCQE cmpl */
+ uint16_t exch_busy; /* SLI4 hba reported XB on complete WCQE */
+ uint16_t status; /* From IOCB Word 7- ulpStatus */
+ uint16_t cpu;
+ uint16_t qidx;
+ uint16_t sqid;
+ uint32_t result; /* From IOCB Word 4. */
+
+ uint32_t seg_cnt; /* Number of scatter-gather segments returned by
+ * dma_map_sg. The driver needs this for calls
+ * to dma_unmap_sg.
+ */
+ dma_addr_t nonsg_phys; /* Non scatter-gather physical address. */
+
+ /*
+ * data and dma_handle are the kernel virtual and bus address of the
+ * dma-able buffer containing the fcp_cmd, fcp_rsp and a scatter
+ * gather bde list that supports the sg_tablesize value.
+ */
+ void *data;
+ dma_addr_t dma_handle;
+
+ struct sli4_sge *nvme_sgl;
+ dma_addr_t dma_phys_sgl;
+
+ /* cur_iocbq has phys of the dma-able buffer.
+ * Iotag is in here
+ */
+ struct lpfc_iocbq cur_iocbq;
+
+ wait_queue_head_t *waitq;
+ unsigned long start_time;
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+ uint64_t ts_cmd_start;
+ uint64_t ts_last_cmd;
+ uint64_t ts_cmd_wqput;
+ uint64_t ts_isr_cmpl;
+ uint64_t ts_data_nvme;
+#endif
+};