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-rw-r--r--drivers/scsi/qla2xxx/qla_nvme.h147
1 files changed, 147 insertions, 0 deletions
diff --git a/drivers/scsi/qla2xxx/qla_nvme.h b/drivers/scsi/qla2xxx/qla_nvme.h
new file mode 100644
index 000000000..d29947837
--- /dev/null
+++ b/drivers/scsi/qla2xxx/qla_nvme.h
@@ -0,0 +1,147 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * QLogic Fibre Channel HBA Driver
+ * Copyright (c) 2003-2017 QLogic Corporation
+ */
+#ifndef __QLA_NVME_H
+#define __QLA_NVME_H
+
+#include <uapi/scsi/fc/fc_fs.h>
+#include <uapi/scsi/fc/fc_els.h>
+#include <linux/nvme-fc-driver.h>
+
+#include "qla_def.h"
+#include "qla_dsd.h"
+
+#define MIN_NVME_HW_QUEUES 1
+#define DEF_NVME_HW_QUEUES 8
+
+#define NVME_ATIO_CMD_OFF 32
+#define NVME_FIRST_PACKET_CMDLEN (64 - NVME_ATIO_CMD_OFF)
+#define Q2T_NVME_NUM_TAGS 2048
+#define QLA_MAX_FC_SEGMENTS 64
+
+struct scsi_qla_host;
+struct qla_hw_data;
+struct req_que;
+struct srb;
+
+struct nvme_private {
+ struct srb *sp;
+ struct nvmefc_ls_req *fd;
+ struct work_struct ls_work;
+ struct work_struct abort_work;
+ int comp_status;
+ spinlock_t cmd_lock;
+};
+
+struct qla_nvme_rport {
+ struct fc_port *fcport;
+};
+
+#define COMMAND_NVME 0x88 /* Command Type FC-NVMe IOCB */
+struct cmd_nvme {
+ uint8_t entry_type; /* Entry type. */
+ uint8_t entry_count; /* Entry count. */
+ uint8_t sys_define; /* System defined. */
+ uint8_t entry_status; /* Entry Status. */
+
+ uint32_t handle; /* System handle. */
+ __le16 nport_handle; /* N_PORT handle. */
+ __le16 timeout; /* Command timeout. */
+
+ __le16 dseg_count; /* Data segment count. */
+ __le16 nvme_rsp_dsd_len; /* NVMe RSP DSD length */
+
+ uint64_t rsvd;
+
+ __le16 control_flags; /* Control Flags */
+#define CF_ADMIN_ASYNC_EVENT BIT_13
+#define CF_NVME_FIRST_BURST_ENABLE BIT_11
+#define CF_DIF_SEG_DESCR_ENABLE BIT_3
+#define CF_DATA_SEG_DESCR_ENABLE BIT_2
+#define CF_READ_DATA BIT_1
+#define CF_WRITE_DATA BIT_0
+
+ __le16 nvme_cmnd_dseg_len; /* Data segment length. */
+ __le64 nvme_cmnd_dseg_address __packed;/* Data segment address. */
+ __le64 nvme_rsp_dseg_address __packed; /* Data segment address. */
+
+ __le32 byte_count; /* Total byte count. */
+
+ uint8_t port_id[3]; /* PortID of destination port. */
+ uint8_t vp_index;
+
+ struct dsd64 nvme_dsd;
+};
+
+#define PT_LS4_REQUEST 0x89 /* Link Service pass-through IOCB (request) */
+struct pt_ls4_request {
+ uint8_t entry_type;
+ uint8_t entry_count;
+ uint8_t sys_define;
+ uint8_t entry_status;
+ uint32_t handle;
+ __le16 status;
+ __le16 nport_handle;
+ __le16 tx_dseg_count;
+ uint8_t vp_index;
+ uint8_t rsvd;
+ __le16 timeout;
+ __le16 control_flags;
+#define CF_LS4_SHIFT 13
+#define CF_LS4_ORIGINATOR 0
+#define CF_LS4_RESPONDER 1
+#define CF_LS4_RESPONDER_TERM 2
+
+ __le16 rx_dseg_count;
+ __le16 rsvd2;
+ __le32 exchange_address;
+ __le32 rsvd3;
+ __le32 rx_byte_count;
+ __le32 tx_byte_count;
+ struct dsd64 dsd[2];
+};
+
+#define PT_LS4_UNSOL 0x56 /* pass-up unsolicited rec FC-NVMe request */
+struct pt_ls4_rx_unsol {
+ uint8_t entry_type;
+ uint8_t entry_count;
+ __le16 rsvd0;
+ __le16 rsvd1;
+ uint8_t vp_index;
+ uint8_t rsvd2;
+ __le16 rsvd3;
+ __le16 nport_handle;
+ __le16 frame_size;
+ __le16 rsvd4;
+ __le32 exchange_address;
+ uint8_t d_id[3];
+ uint8_t r_ctl;
+ be_id_t s_id;
+ uint8_t cs_ctl;
+ uint8_t f_ctl[3];
+ uint8_t type;
+ __le16 seq_cnt;
+ uint8_t df_ctl;
+ uint8_t seq_id;
+ __le16 rx_id;
+ __le16 ox_id;
+ __le32 param;
+ __le32 desc0;
+#define PT_LS4_PAYLOAD_OFFSET 0x2c
+#define PT_LS4_FIRST_PACKET_LEN 20
+ __le32 desc_len;
+ __le32 payload[3];
+};
+
+/*
+ * Global functions prototype in qla_nvme.c source file.
+ */
+int qla_nvme_register_hba(struct scsi_qla_host *);
+int qla_nvme_register_remote(struct scsi_qla_host *, struct fc_port *);
+void qla_nvme_delete(struct scsi_qla_host *);
+void qla24xx_nvme_ls4_iocb(struct scsi_qla_host *, struct pt_ls4_request *,
+ struct req_que *);
+void qla24xx_async_gffid_sp_done(struct srb *sp, int);
+#endif