Adding upstream version 4.19.249.upstream/4.19.249

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 152 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..4941d107f
--- /dev/null
+++ b/drivers/scsi/qla2xxx/qla_nvme.h
@@ -0,0 +1,152 @@
+/*
+ * QLogic Fibre Channel HBA Driver
+ * Copyright (c)  2003-2017 QLogic Corporation
+ *
+ * See LICENSE.qla2xxx for copyright and licensing details.
+ */
+#ifndef __QLA_NVME_H
+#define __QLA_NVME_H
+
+#include <linux/blk-mq.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"
+
+/* default dev loss time (seconds) before transport tears down ctrl */
+#define NVME_FC_DEV_LOSS_TMO  30
+
+#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;
+};
+
+struct qla_nvme_rport {
+	struct list_head list;
+	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. */
+	uint16_t nport_handle;          /* N_PORT handle. */
+	uint16_t timeout;               /* Command timeout. */
+
+	uint16_t dseg_count;            /* Data segment count. */
+	uint16_t nvme_rsp_dsd_len;      /* NVMe RSP DSD length */
+
+	uint64_t rsvd;
+
+	uint16_t control_flags;         /* Control Flags */
+#define CF_NVME_ENABLE                  BIT_9
+#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
+
+	uint16_t nvme_cmnd_dseg_len;             /* Data segment length. */
+	uint32_t nvme_cmnd_dseg_address[2];      /* Data segment address. */
+	uint32_t nvme_rsp_dseg_address[2];       /* Data segment address. */
+
+	uint32_t byte_count;            /* Total byte count. */
+
+	uint8_t port_id[3];             /* PortID of destination port. */
+	uint8_t vp_index;
+
+	uint32_t nvme_data_dseg_address[2];      /* Data segment address. */
+	uint32_t nvme_data_dseg_len;             /* Data segment length. */
+};
+
+#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;
+	uint16_t status;
+	uint16_t nport_handle;
+	uint16_t tx_dseg_count;
+	uint8_t  vp_index;
+	uint8_t  rsvd;
+	uint16_t timeout;
+	uint16_t control_flags;
+#define CF_LS4_SHIFT		13
+#define CF_LS4_ORIGINATOR	0
+#define CF_LS4_RESPONDER	1
+#define CF_LS4_RESPONDER_TERM	2
+
+	uint16_t rx_dseg_count;
+	uint16_t rsvd2;
+	uint32_t exchange_address;
+	uint32_t rsvd3;
+	uint32_t rx_byte_count;
+	uint32_t tx_byte_count;
+	uint32_t dseg0_address[2];
+	uint32_t dseg0_len;
+	uint32_t dseg1_address[2];
+	uint32_t dseg1_len;
+};
+
+#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;
+	uint16_t rsvd0;
+	uint16_t rsvd1;
+	uint8_t vp_index;
+	uint8_t rsvd2;
+	uint16_t rsvd3;
+	uint16_t nport_handle;
+	uint16_t frame_size;
+	uint16_t rsvd4;
+	uint32_t exchange_address;
+	uint8_t d_id[3];
+	uint8_t r_ctl;
+	uint8_t s_id[3];
+	uint8_t cs_ctl;
+	uint8_t f_ctl[3];
+	uint8_t type;
+	uint16_t seq_cnt;
+	uint8_t df_ctl;
+	uint8_t seq_id;
+	uint16_t rx_id;
+	uint16_t ox_id;
+	uint32_t param;
+	uint32_t desc0;
+#define PT_LS4_PAYLOAD_OFFSET 0x2c
+#define PT_LS4_FIRST_PACKET_LEN 20
+	uint32_t desc_len;
+	uint32_t 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 qla_nvme_abort(struct qla_hw_data *, struct srb *sp, int res);
+void qla24xx_nvme_ls4_iocb(struct scsi_qla_host *, struct pt_ls4_request *,
+    struct req_que *);
+void qla24xx_async_gffid_sp_done(void *, int);
+#endif