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linux/drivers/scsi/esas2r/esas2r.h
Vaibhav Gupta 5f2d8c3650 scsi: esas2r: Use generic power management 
Drivers should do only device-specific jobs. But in general, drivers using
legacy PCI PM framework for .suspend()/.resume() have to manage many PCI
PM-related tasks themselves which can be done by PCI Core itself. This
brings extra load on the driver and it directly calls PCI helper functions
to handle them.

Switch to the new generic framework by updating function signatures and
define a "struct dev_pm_ops" variable to bind PM callbacks. Also, remove
unnecessary calls to the PCI Helper functions along with the legacy
.suspend & .resume bindings.

Link: https://lore.kernel.org/r/20201102164730.324035-12-vaibhavgupta40@gmail.com
Signed-off-by: Vaibhav Gupta <vaibhavgupta40@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-11-25 23:14:31 -05:00

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/*
* linux/drivers/scsi/esas2r/esas2r.h
* For use with ATTO ExpressSAS R6xx SAS/SATA RAID controllers
*
* Copyright (c) 2001-2013 ATTO Technology, Inc.
* (mailto:linuxdrivers@attotech.com)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* NO WARRANTY
* THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
* CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
* LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
* solely responsible for determining the appropriateness of using and
* distributing the Program and assumes all risks associated with its
* exercise of rights under this Agreement, including but not limited to
* the risks and costs of program errors, damage to or loss of data,
* programs or equipment, and unavailability or interruption of operations.
*
* DISCLAIMER OF LIABILITY
* NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
* USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
* HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*/
#include <linux/kernel.h>
#include <linux/delay.h>
#include <linux/pci.h>
#include <linux/proc_fs.h>
#include <linux/workqueue.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/vmalloc.h>
#include <scsi/scsi.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_cmnd.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_eh.h>
#include <scsi/scsi_tcq.h>
#include "esas2r_log.h"
#include "atioctl.h"
#include "atvda.h"
#ifndef ESAS2R_H
#define ESAS2R_H
/* Global Variables */
extern struct esas2r_adapter *esas2r_adapters[];
extern u8 *esas2r_buffered_ioctl;
extern dma_addr_t esas2r_buffered_ioctl_addr;
extern u32 esas2r_buffered_ioctl_size;
extern struct pci_dev *esas2r_buffered_ioctl_pcid;
#define SGL_PG_SZ_MIN 64
#define SGL_PG_SZ_MAX 1024
extern int sgl_page_size;
#define NUM_SGL_MIN 8
#define NUM_SGL_MAX 2048
extern int num_sg_lists;
#define NUM_REQ_MIN 4
#define NUM_REQ_MAX 256
extern int num_requests;
#define NUM_AE_MIN 2
#define NUM_AE_MAX 8
extern int num_ae_requests;
extern int cmd_per_lun;
extern int can_queue;
extern int esas2r_max_sectors;
extern int sg_tablesize;
extern int interrupt_mode;
extern int num_io_requests;
/* Macro defintions */
#define ESAS2R_MAX_ID 255
#define MAX_ADAPTERS 32
#define ESAS2R_DRVR_NAME "esas2r"
#define ESAS2R_LONGNAME "ATTO ExpressSAS 6GB RAID Adapter"
#define ESAS2R_MAX_DEVICES 32
#define ATTONODE_NAME "ATTONode"
#define ESAS2R_MAJOR_REV 1
#define ESAS2R_MINOR_REV 00
#define ESAS2R_VERSION_STR DEFINED_NUM_TO_STR(ESAS2R_MAJOR_REV) "." \
DEFINED_NUM_TO_STR(ESAS2R_MINOR_REV)
#define ESAS2R_COPYRIGHT_YEARS "2001-2013"
#define ESAS2R_DEFAULT_SGL_PAGE_SIZE 384
#define ESAS2R_DEFAULT_CMD_PER_LUN 64
#define ESAS2R_DEFAULT_NUM_SG_LISTS 1024
#define DEFINED_NUM_TO_STR(num) NUM_TO_STR(num)
#define NUM_TO_STR(num) #num
#define ESAS2R_SGL_ALIGN 16
#define ESAS2R_LIST_ALIGN 16
#define ESAS2R_LIST_EXTRA ESAS2R_NUM_EXTRA
#define ESAS2R_DATA_BUF_LEN 256
#define ESAS2R_DEFAULT_TMO 5000
#define ESAS2R_DISC_BUF_LEN 512
#define ESAS2R_FWCOREDUMP_SZ 0x80000
#define ESAS2R_NUM_PHYS 8
#define ESAS2R_TARG_ID_INV 0xFFFF
#define ESAS2R_INT_STS_MASK MU_INTSTAT_MASK
#define ESAS2R_INT_ENB_MASK MU_INTSTAT_MASK
#define ESAS2R_INT_DIS_MASK 0
#define ESAS2R_MAX_TARGETS 256
#define ESAS2R_KOBJ_NAME_LEN 20
/* u16 (WORD) component macros */
#define LOBYTE(w) ((u8)(u16)(w))
#define HIBYTE(w) ((u8)(((u16)(w)) >> 8))
#define MAKEWORD(lo, hi) ((u16)((u8)(lo) | ((u16)(u8)(hi) << 8)))
/* u32 (DWORD) component macros */
#define LOWORD(d) ((u16)(u32)(d))
#define HIWORD(d) ((u16)(((u32)(d)) >> 16))
#define MAKEDWORD(lo, hi) ((u32)((u16)(lo) | ((u32)(u16)(hi) << 16)))
/* macro to get the lowest nonzero bit of a value */
#define LOBIT(x) ((x) & (0 - (x)))
/* These functions are provided to access the chip's control registers.
* The register is specified by its byte offset from the register base
* for the adapter.
*/
#define esas2r_read_register_dword(a, reg) \
readl((void __iomem *)a->regs + (reg) + MW_REG_OFFSET_HWREG)
#define esas2r_write_register_dword(a, reg, data) \
writel(data, (void __iomem *)(a->regs + (reg) + MW_REG_OFFSET_HWREG))
#define esas2r_flush_register_dword(a, r) esas2r_read_register_dword(a, r)
/* This function is provided to access the chip's data window. The
* register is specified by its byte offset from the window base
* for the adapter.
*/
#define esas2r_read_data_byte(a, reg) \
readb((void __iomem *)a->data_window + (reg))
/* ATTO vendor and device Ids */
#define ATTO_VENDOR_ID 0x117C
#define ATTO_DID_INTEL_IOP348 0x002C
#define ATTO_DID_MV_88RC9580 0x0049
#define ATTO_DID_MV_88RC9580TS 0x0066
#define ATTO_DID_MV_88RC9580TSE 0x0067
#define ATTO_DID_MV_88RC9580TL 0x0068
/* ATTO subsystem device Ids */
#define ATTO_SSDID_TBT 0x4000
#define ATTO_TSSC_3808 0x4066
#define ATTO_TSSC_3808E 0x4067
#define ATTO_TLSH_1068 0x4068
#define ATTO_ESAS_R680 0x0049
#define ATTO_ESAS_R608 0x004A
#define ATTO_ESAS_R60F 0x004B
#define ATTO_ESAS_R6F0 0x004C
#define ATTO_ESAS_R644 0x004D
#define ATTO_ESAS_R648 0x004E
/*
* flash definitions & structures
* define the code types
*/
#define FBT_CPYR 0xAA00
#define FBT_SETUP 0xAA02
#define FBT_FLASH_VER 0xAA04
/* offsets to various locations in flash */
#define FLS_OFFSET_BOOT (u32)(0x00700000)
#define FLS_OFFSET_NVR (u32)(0x007C0000)
#define FLS_OFFSET_CPYR FLS_OFFSET_NVR
#define FLS_LENGTH_BOOT (FLS_OFFSET_CPYR - FLS_OFFSET_BOOT)
#define FLS_BLOCK_SIZE (u32)(0x00020000)
#define FI_NVR_2KB 0x0800
#define FI_NVR_8KB 0x2000
#define FM_BUF_SZ 0x800
/*
* marvell frey (88R9580) register definitions
* chip revision identifiers
*/
#define MVR_FREY_B2 0xB2
/*
* memory window definitions. window 0 is the data window with definitions
* of MW_DATA_XXX. window 1 is the register window with definitions of
* MW_REG_XXX.
*/
#define MW_REG_WINDOW_SIZE (u32)(0x00040000)
#define MW_REG_OFFSET_HWREG (u32)(0x00000000)
#define MW_REG_OFFSET_PCI (u32)(0x00008000)
#define MW_REG_PCI_HWREG_DELTA (MW_REG_OFFSET_PCI - MW_REG_OFFSET_HWREG)
#define MW_DATA_WINDOW_SIZE (u32)(0x00020000)
#define MW_DATA_ADDR_SER_FLASH (u32)(0xEC000000)
#define MW_DATA_ADDR_SRAM (u32)(0xF4000000)
#define MW_DATA_ADDR_PAR_FLASH (u32)(0xFC000000)
/*
* the following registers are for the communication
* list interface (AKA message unit (MU))
*/
#define MU_IN_LIST_ADDR_LO (u32)(0x00004000)
#define MU_IN_LIST_ADDR_HI (u32)(0x00004004)
#define MU_IN_LIST_WRITE (u32)(0x00004018)
#define MU_ILW_TOGGLE (u32)(0x00004000)
#define MU_IN_LIST_READ (u32)(0x0000401C)
#define MU_ILR_TOGGLE (u32)(0x00004000)
#define MU_ILIC_LIST (u32)(0x0000000F)
#define MU_ILIC_LIST_F0 (u32)(0x00000000)
#define MU_ILIC_DEST (u32)(0x00000F00)
#define MU_ILIC_DEST_DDR (u32)(0x00000200)
#define MU_IN_LIST_IFC_CONFIG (u32)(0x00004028)
#define MU_IN_LIST_CONFIG (u32)(0x0000402C)
#define MU_ILC_ENABLE (u32)(0x00000001)
#define MU_ILC_ENTRY_MASK (u32)(0x000000F0)
#define MU_ILC_ENTRY_4_DW (u32)(0x00000020)
#define MU_ILC_DYNAMIC_SRC (u32)(0x00008000)
#define MU_ILC_NUMBER_MASK (u32)(0x7FFF0000)
#define MU_ILC_NUMBER_SHIFT 16
#define MU_OUT_LIST_ADDR_LO (u32)(0x00004050)
#define MU_OUT_LIST_ADDR_HI (u32)(0x00004054)
#define MU_OUT_LIST_COPY_PTR_LO (u32)(0x00004058)
#define MU_OUT_LIST_COPY_PTR_HI (u32)(0x0000405C)
#define MU_OUT_LIST_WRITE (u32)(0x00004068)
#define MU_OLW_TOGGLE (u32)(0x00004000)
#define MU_OUT_LIST_COPY (u32)(0x0000406C)
#define MU_OLC_TOGGLE (u32)(0x00004000)
#define MU_OLC_WRT_PTR (u32)(0x00003FFF)
#define MU_OUT_LIST_IFC_CONFIG (u32)(0x00004078)
#define MU_OLIC_LIST (u32)(0x0000000F)
#define MU_OLIC_LIST_F0 (u32)(0x00000000)
#define MU_OLIC_SOURCE (u32)(0x00000F00)
#define MU_OLIC_SOURCE_DDR (u32)(0x00000200)
#define MU_OUT_LIST_CONFIG (u32)(0x0000407C)
#define MU_OLC_ENABLE (u32)(0x00000001)
#define MU_OLC_ENTRY_MASK (u32)(0x000000F0)
#define MU_OLC_ENTRY_4_DW (u32)(0x00000020)
#define MU_OLC_NUMBER_MASK (u32)(0x7FFF0000)
#define MU_OLC_NUMBER_SHIFT 16
#define MU_OUT_LIST_INT_STAT (u32)(0x00004088)
#define MU_OLIS_INT (u32)(0x00000001)
#define MU_OUT_LIST_INT_MASK (u32)(0x0000408C)
#define MU_OLIS_MASK (u32)(0x00000001)
/*
* the maximum size of the communication lists is two greater than the
* maximum amount of VDA requests. the extra are to prevent queue overflow.
*/
#define ESAS2R_MAX_NUM_REQS 256
#define ESAS2R_NUM_EXTRA 2
#define ESAS2R_MAX_COMM_LIST_SIZE (ESAS2R_MAX_NUM_REQS + ESAS2R_NUM_EXTRA)
/*
* the following registers are for the CPU interface
*/
#define MU_CTL_STATUS_IN (u32)(0x00010108)
#define MU_CTL_IN_FULL_RST (u32)(0x00000020)
#define MU_CTL_STATUS_IN_B2 (u32)(0x00010130)
#define MU_CTL_IN_FULL_RST2 (u32)(0x80000000)
#define MU_DOORBELL_IN (u32)(0x00010460)
#define DRBL_RESET_BUS (u32)(0x00000002)
#define DRBL_PAUSE_AE (u32)(0x00000004)
#define DRBL_RESUME_AE (u32)(0x00000008)
#define DRBL_MSG_IFC_DOWN (u32)(0x00000010)
#define DRBL_FLASH_REQ (u32)(0x00000020)
#define DRBL_FLASH_DONE (u32)(0x00000040)
#define DRBL_FORCE_INT (u32)(0x00000080)
#define DRBL_MSG_IFC_INIT (u32)(0x00000100)
#define DRBL_POWER_DOWN (u32)(0x00000200)
#define DRBL_DRV_VER_1 (u32)(0x00010000)
#define DRBL_DRV_VER DRBL_DRV_VER_1
#define MU_DOORBELL_IN_ENB (u32)(0x00010464)
#define MU_DOORBELL_OUT (u32)(0x00010480)
#define DRBL_PANIC_REASON_MASK (u32)(0x00F00000)
#define DRBL_UNUSED_HANDLER (u32)(0x00100000)
#define DRBL_UNDEF_INSTR (u32)(0x00200000)
#define DRBL_PREFETCH_ABORT (u32)(0x00300000)
#define DRBL_DATA_ABORT (u32)(0x00400000)
#define DRBL_JUMP_TO_ZERO (u32)(0x00500000)
#define DRBL_FW_RESET (u32)(0x00080000)
#define DRBL_FW_VER_MSK (u32)(0x00070000)
#define DRBL_FW_VER_0 (u32)(0x00000000)
#define DRBL_FW_VER_1 (u32)(0x00010000)
#define DRBL_FW_VER DRBL_FW_VER_1
#define MU_DOORBELL_OUT_ENB (u32)(0x00010484)
#define DRBL_ENB_MASK (u32)(0x00F803FF)
#define MU_INT_STATUS_OUT (u32)(0x00010200)
#define MU_INTSTAT_POST_OUT (u32)(0x00000010)
#define MU_INTSTAT_DRBL_IN (u32)(0x00000100)
#define MU_INTSTAT_DRBL (u32)(0x00001000)
#define MU_INTSTAT_MASK (u32)(0x00001010)
#define MU_INT_MASK_OUT (u32)(0x0001020C)
/* PCI express registers accessed via window 1 */
#define MVR_PCI_WIN1_REMAP (u32)(0x00008438)
#define MVRPW1R_ENABLE (u32)(0x00000001)
/* structures */
/* inbound list dynamic source entry */
struct esas2r_inbound_list_source_entry {
u64 address;
u32 length;
#define HWILSE_INTERFACE_F0 0x00000000
u32 reserved;
};
/* PCI data structure in expansion ROM images */
struct __packed esas2r_boot_header {
char signature[4];
u16 vendor_id;
u16 device_id;
u16 VPD;
u16 struct_length;
u8 struct_revision;
u8 class_code[3];
u16 image_length;
u16 code_revision;
u8 code_type;
#define CODE_TYPE_PC 0
#define CODE_TYPE_OPEN 1
#define CODE_TYPE_EFI 3
u8 indicator;
#define INDICATOR_LAST 0x80
u8 reserved[2];
};
struct __packed esas2r_boot_image {
u16 signature;
u8 reserved[22];
u16 header_offset;
u16 pnp_offset;
};
struct __packed esas2r_pc_image {
u16 signature;
u8 length;
u8 entry_point[3];
u8 checksum;
u16 image_end;
u16 min_size;
u8 rom_flags;
u8 reserved[12];
u16 header_offset;
u16 pnp_offset;
struct esas2r_boot_header boot_image;
};
struct __packed esas2r_efi_image {
u16 signature;
u16 length;
u32 efi_signature;
#define EFI_ROM_SIG 0x00000EF1
u16 image_type;
#define EFI_IMAGE_APP 10
#define EFI_IMAGE_BSD 11
#define EFI_IMAGE_RTD 12
u16 machine_type;
#define EFI_MACHINE_IA32 0x014c
#define EFI_MACHINE_IA64 0x0200
#define EFI_MACHINE_X64 0x8664
#define EFI_MACHINE_EBC 0x0EBC
u16 compression;
#define EFI_UNCOMPRESSED 0x0000
#define EFI_COMPRESSED 0x0001
u8 reserved[8];
u16 efi_offset;
u16 header_offset;
u16 reserved2;
struct esas2r_boot_header boot_image;
};
struct esas2r_adapter;
struct esas2r_sg_context;
struct esas2r_request;
typedef void (*RQCALLBK) (struct esas2r_adapter *a,
struct esas2r_request *rq);
typedef bool (*RQBUILDSGL) (struct esas2r_adapter *a,
struct esas2r_sg_context *sgc);
struct esas2r_component_header {
u8 img_type;
#define CH_IT_FW 0x00
#define CH_IT_NVR 0x01
#define CH_IT_BIOS 0x02
#define CH_IT_MAC 0x03
#define CH_IT_CFG 0x04
#define CH_IT_EFI 0x05
u8 status;
#define CH_STAT_PENDING 0xff
#define CH_STAT_FAILED 0x00
#define CH_STAT_SUCCESS 0x01
#define CH_STAT_RETRY 0x02
#define CH_STAT_INVALID 0x03
u8 pad[2];
u32 version;
u32 length;
u32 image_offset;
};
#define FI_REL_VER_SZ 16
struct esas2r_flash_img_v0 {
u8 fi_version;
#define FI_VERSION_0 00
u8 status;
u8 adap_typ;
u8 action;
u32 length;
u16 checksum;
u16 driver_error;
u16 flags;
u16 num_comps;
#define FI_NUM_COMPS_V0 5
u8 rel_version[FI_REL_VER_SZ];
struct esas2r_component_header cmp_hdr[FI_NUM_COMPS_V0];
u8 scratch_buf[FM_BUF_SZ];
};
struct esas2r_flash_img {
u8 fi_version;
#define FI_VERSION_1 01
u8 status;
#define FI_STAT_SUCCESS 0x00
#define FI_STAT_FAILED 0x01
#define FI_STAT_REBOOT 0x02
#define FI_STAT_ADAPTYP 0x03
#define FI_STAT_INVALID 0x04
#define FI_STAT_CHKSUM 0x05
#define FI_STAT_LENGTH 0x06
#define FI_STAT_UNKNOWN 0x07
#define FI_STAT_IMG_VER 0x08
#define FI_STAT_BUSY 0x09
#define FI_STAT_DUAL 0x0A
#define FI_STAT_MISSING 0x0B
#define FI_STAT_UNSUPP 0x0C
#define FI_STAT_ERASE 0x0D
#define FI_STAT_FLASH 0x0E
#define FI_STAT_DEGRADED 0x0F
u8 adap_typ;
#define FI_AT_UNKNWN 0xFF
#define FI_AT_SUN_LAKE 0x0B
#define FI_AT_MV_9580 0x0F
u8 action;
#define FI_ACT_DOWN 0x00
#define FI_ACT_UP 0x01
#define FI_ACT_UPSZ 0x02
#define FI_ACT_MAX 0x02
#define FI_ACT_DOWN1 0x80
u32 length;
u16 checksum;
u16 driver_error;
u16 flags;
#define FI_FLG_NVR_DEF 0x0001
u16 num_comps;
#define FI_NUM_COMPS_V1 6
u8 rel_version[FI_REL_VER_SZ];
struct esas2r_component_header cmp_hdr[FI_NUM_COMPS_V1];
u8 scratch_buf[FM_BUF_SZ];
};
/* definitions for flash script (FS) commands */
struct esas2r_ioctlfs_command {
u8 command;
#define ESAS2R_FS_CMD_ERASE 0
#define ESAS2R_FS_CMD_READ 1
#define ESAS2R_FS_CMD_BEGINW 2
#define ESAS2R_FS_CMD_WRITE 3
#define ESAS2R_FS_CMD_COMMIT 4
#define ESAS2R_FS_CMD_CANCEL 5
u8 checksum;
u8 reserved[2];
u32 flash_addr;
u32 length;
u32 image_offset;
};
struct esas2r_ioctl_fs {
u8 version;
#define ESAS2R_FS_VER 0
u8 status;
u8 driver_error;
u8 adap_type;
#define ESAS2R_FS_AT_ESASRAID2 3
#define ESAS2R_FS_AT_TSSASRAID2 4
#define ESAS2R_FS_AT_TSSASRAID2E 5
#define ESAS2R_FS_AT_TLSASHBA 6
u8 driver_ver;
u8 reserved[11];
struct esas2r_ioctlfs_command command;
u8 data[1];
};
struct esas2r_sas_nvram {
u8 signature[4];
u8 version;
#define SASNVR_VERSION_0 0x00
#define SASNVR_VERSION SASNVR_VERSION_0
u8 checksum;
#define SASNVR_CKSUM_SEED 0x5A
u8 max_lun_for_target;
u8 pci_latency;
#define SASNVR_PCILAT_DIS 0x00
#define SASNVR_PCILAT_MIN 0x10
#define SASNVR_PCILAT_MAX 0xF8
u8 options1;
#define SASNVR1_BOOT_DRVR 0x01
#define SASNVR1_BOOT_SCAN 0x02
#define SASNVR1_DIS_PCI_MWI 0x04
#define SASNVR1_FORCE_ORD_Q 0x08
#define SASNVR1_CACHELINE_0 0x10
#define SASNVR1_DIS_DEVSORT 0x20
#define SASNVR1_PWR_MGT_EN 0x40
#define SASNVR1_WIDEPORT 0x80
u8 options2;
#define SASNVR2_SINGLE_BUS 0x01
#define SASNVR2_SLOT_BIND 0x02
#define SASNVR2_EXP_PROG 0x04
#define SASNVR2_CMDTHR_LUN 0x08
#define SASNVR2_HEARTBEAT 0x10
#define SASNVR2_INT_CONNECT 0x20
#define SASNVR2_SW_MUX_CTRL 0x40
#define SASNVR2_DISABLE_NCQ 0x80
u8 int_coalescing;
#define SASNVR_COAL_DIS 0x00
#define SASNVR_COAL_LOW 0x01
#define SASNVR_COAL_MED 0x02
#define SASNVR_COAL_HI 0x03
u8 cmd_throttle;
#define SASNVR_CMDTHR_NONE 0x00
u8 dev_wait_time;
u8 dev_wait_count;
u8 spin_up_delay;
#define SASNVR_SPINUP_MAX 0x14
u8 ssp_align_rate;
u8 sas_addr[8];
u8 phy_speed[16];
#define SASNVR_SPEED_AUTO 0x00
#define SASNVR_SPEED_1_5GB 0x01
#define SASNVR_SPEED_3GB 0x02
#define SASNVR_SPEED_6GB 0x03
#define SASNVR_SPEED_12GB 0x04
u8 phy_mux[16];
#define SASNVR_MUX_DISABLED 0x00
#define SASNVR_MUX_1_5GB 0x01
#define SASNVR_MUX_3GB 0x02
#define SASNVR_MUX_6GB 0x03
u8 phy_flags[16];
#define SASNVR_PHF_DISABLED 0x01
#define SASNVR_PHF_RD_ONLY 0x02
u8 sort_type;
#define SASNVR_SORT_SAS_ADDR 0x00
#define SASNVR_SORT_H308_CONN 0x01
#define SASNVR_SORT_PHY_ID 0x02
#define SASNVR_SORT_SLOT_ID 0x03
u8 dpm_reqcmd_lmt;
u8 dpm_stndby_time;
u8 dpm_active_time;
u8 phy_target_id[16];
#define SASNVR_PTI_DISABLED 0xFF
u8 virt_ses_mode;
#define SASNVR_VSMH_DISABLED 0x00
u8 read_write_mode;
#define SASNVR_RWM_DEFAULT 0x00
u8 link_down_to;
u8 reserved[0xA1];
};
typedef u32 (*PGETPHYSADDR) (struct esas2r_sg_context *sgc, u64 *addr);
struct esas2r_sg_context {
struct esas2r_adapter *adapter;
struct esas2r_request *first_req;
u32 length;
u8 *cur_offset;
PGETPHYSADDR get_phys_addr;
union {
struct {
struct atto_vda_sge *curr;
struct atto_vda_sge *last;
struct atto_vda_sge *limit;
struct atto_vda_sge *chain;
} a64;
struct {
struct atto_physical_region_description *curr;
struct atto_physical_region_description *chain;
u32 sgl_max_cnt;
u32 sge_cnt;
} prd;
} sge;
struct scatterlist *cur_sgel;
u8 *exp_offset;
int num_sgel;
int sgel_count;
};
struct esas2r_target {
u8 flags;
#define TF_PASS_THRU 0x01
#define TF_USED 0x02
u8 new_target_state;
u8 target_state;
u8 buffered_target_state;
#define TS_NOT_PRESENT 0x00
#define TS_PRESENT 0x05
#define TS_LUN_CHANGE 0x06
#define TS_INVALID 0xFF
u32 block_size;
u32 inter_block;
u32 inter_byte;
u16 virt_targ_id;
u16 phys_targ_id;
u8 identifier_len;
u64 sas_addr;
u8 identifier[60];
struct atto_vda_ae_lu lu_event;
};
struct esas2r_request {
struct list_head comp_list;
struct list_head req_list;
union atto_vda_req *vrq;
struct esas2r_mem_desc *vrq_md;
union {
void *data_buf;
union atto_vda_rsp_data *vda_rsp_data;
};
u8 *sense_buf;
struct list_head sg_table_head;
struct esas2r_mem_desc *sg_table;
u32 timeout;
#define RQ_TIMEOUT_S1 0xFFFFFFFF
#define RQ_TIMEOUT_S2 0xFFFFFFFE
#define RQ_MAX_TIMEOUT 0xFFFFFFFD
u16 target_id;
u8 req_type;
#define RT_INI_REQ 0x01
#define RT_DISC_REQ 0x02
u8 sense_len;
union atto_vda_func_rsp func_rsp;
RQCALLBK comp_cb;
RQCALLBK interrupt_cb;
void *interrupt_cx;
u8 flags;
#define RF_1ST_IBLK_BASE 0x04
#define RF_FAILURE_OK 0x08
u8 req_stat;
u16 vda_req_sz;
#define RQ_SIZE_DEFAULT 0
u64 lba;
RQCALLBK aux_req_cb;
void *aux_req_cx;
u32 blk_len;
u32 max_blk_len;
union {
struct scsi_cmnd *cmd;
u8 *task_management_status_ptr;
};
};
struct esas2r_flash_context {
struct esas2r_flash_img *fi;
RQCALLBK interrupt_cb;
u8 *sgc_offset;
u8 *scratch;
u32 fi_hdr_len;
u8 task;
#define FMTSK_ERASE_BOOT 0
#define FMTSK_WRTBIOS 1
#define FMTSK_READBIOS 2
#define FMTSK_WRTMAC 3
#define FMTSK_READMAC 4
#define FMTSK_WRTEFI 5
#define FMTSK_READEFI 6
#define FMTSK_WRTCFG 7
#define FMTSK_READCFG 8
u8 func;
u16 num_comps;
u32 cmp_len;
u32 flsh_addr;
u32 curr_len;
u8 comp_typ;
struct esas2r_sg_context sgc;
};
struct esas2r_disc_context {
u8 disc_evt;
#define DCDE_DEV_CHANGE 0x01
#define DCDE_DEV_SCAN 0x02
u8 state;
#define DCS_DEV_RMV 0x00
#define DCS_DEV_ADD 0x01
#define DCS_BLOCK_DEV_SCAN 0x02
#define DCS_RAID_GRP_INFO 0x03
#define DCS_PART_INFO 0x04
#define DCS_PT_DEV_INFO 0x05
#define DCS_PT_DEV_ADDR 0x06
#define DCS_DISC_DONE 0xFF
u16 flags;
#define DCF_DEV_CHANGE 0x0001
#define DCF_DEV_SCAN 0x0002
#define DCF_POLLED 0x8000
u32 interleave;
u32 block_size;
u16 dev_ix;
u8 part_num;
u8 raid_grp_ix;
char raid_grp_name[16];
struct esas2r_target *curr_targ;
u16 curr_virt_id;
u16 curr_phys_id;
u8 scan_gen;
u8 dev_addr_type;
u64 sas_addr;
};
struct esas2r_mem_desc {
struct list_head next_desc;
void *virt_addr;
u64 phys_addr;
void *pad;
void *esas2r_data;
u32 esas2r_param;
u32 size;
};
enum fw_event_type {
fw_event_null,
fw_event_lun_change,
fw_event_present,
fw_event_not_present,
fw_event_vda_ae
};
struct esas2r_vda_ae {
u32 signature;
#define ESAS2R_VDA_EVENT_SIG 0x4154544F
u8 bus_number;
u8 devfn;
u8 pad[2];
union atto_vda_ae vda_ae;
};
struct esas2r_fw_event_work {
struct list_head list;
struct delayed_work work;
struct esas2r_adapter *a;
enum fw_event_type type;
u8 data[sizeof(struct esas2r_vda_ae)];
};
enum state {
FW_INVALID_ST,
FW_STATUS_ST,
FW_COMMAND_ST
};
struct esas2r_firmware {
enum state state;
struct esas2r_flash_img header;
u8 *data;
u64 phys;
int orig_len;
void *header_buff;
u64 header_buff_phys;
};
struct esas2r_adapter {
struct esas2r_target targetdb[ESAS2R_MAX_TARGETS];
struct esas2r_target *targetdb_end;
unsigned char *regs;
unsigned char *data_window;
long flags;
#define AF_PORT_CHANGE 0
#define AF_CHPRST_NEEDED 1
#define AF_CHPRST_PENDING 2
#define AF_CHPRST_DETECTED 3
#define AF_BUSRST_NEEDED 4
#define AF_BUSRST_PENDING 5
#define AF_BUSRST_DETECTED 6
#define AF_DISABLED 7
#define AF_FLASH_LOCK 8
#define AF_OS_RESET 9
#define AF_FLASHING 10
#define AF_POWER_MGT 11
#define AF_NVR_VALID 12
#define AF_DEGRADED_MODE 13
#define AF_DISC_PENDING 14
#define AF_TASKLET_SCHEDULED 15
#define AF_HEARTBEAT 16
#define AF_HEARTBEAT_ENB 17
#define AF_NOT_PRESENT 18
#define AF_CHPRST_STARTED 19
#define AF_FIRST_INIT 20
#define AF_POWER_DOWN 21
#define AF_DISC_IN_PROG 22
#define AF_COMM_LIST_TOGGLE 23
#define AF_LEGACY_SGE_MODE 24
#define AF_DISC_POLLED 25
long flags2;
#define AF2_SERIAL_FLASH 0
#define AF2_DEV_SCAN 1
#define AF2_DEV_CNT_OK 2
#define AF2_COREDUMP_AVAIL 3
#define AF2_COREDUMP_SAVED 4
#define AF2_VDA_POWER_DOWN 5
#define AF2_THUNDERLINK 6
#define AF2_THUNDERBOLT 7
#define AF2_INIT_DONE 8
#define AF2_INT_PENDING 9
#define AF2_TIMER_TICK 10
#define AF2_IRQ_CLAIMED 11
#define AF2_MSI_ENABLED 12
atomic_t disable_cnt;
atomic_t dis_ints_cnt;
u32 int_stat;
u32 int_mask;
u32 volatile *outbound_copy;
struct list_head avail_request;
spinlock_t request_lock;
spinlock_t sg_list_lock;
spinlock_t queue_lock;
spinlock_t mem_lock;
struct list_head free_sg_list_head;
struct esas2r_mem_desc *sg_list_mds;
struct list_head active_list;
struct list_head defer_list;
struct esas2r_request **req_table;
union {
u16 prev_dev_cnt;
u32 heartbeat_time;
#define ESAS2R_HEARTBEAT_TIME (3000)
};
u32 chip_uptime;
#define ESAS2R_CHP_UPTIME_MAX (60000)
#define ESAS2R_CHP_UPTIME_CNT (20000)
u64 uncached_phys;
u8 *uncached;
struct esas2r_sas_nvram *nvram;
struct esas2r_request general_req;
u8 init_msg;
#define ESAS2R_INIT_MSG_START 1
#define ESAS2R_INIT_MSG_INIT 2
#define ESAS2R_INIT_MSG_GET_INIT 3
#define ESAS2R_INIT_MSG_REINIT 4
u16 cmd_ref_no;
u32 fw_version;
u32 fw_build;
u32 chip_init_time;
#define ESAS2R_CHPRST_TIME (180000)
#define ESAS2R_CHPRST_WAIT_TIME (2000)
u32 last_tick_time;
u32 window_base;
RQBUILDSGL build_sgl;
struct esas2r_request *first_ae_req;
u32 list_size;
u32 last_write;
u32 last_read;
u16 max_vdareq_size;
u16 disc_wait_cnt;
struct esas2r_mem_desc inbound_list_md;
struct esas2r_mem_desc outbound_list_md;
struct esas2r_disc_context disc_ctx;
u8 *disc_buffer;
u32 disc_start_time;
u32 disc_wait_time;
u32 flash_ver;
char flash_rev[16];
char fw_rev[16];
char image_type[16];
struct esas2r_flash_context flash_context;
u32 num_targets_backend;
u32 ioctl_tunnel;
struct tasklet_struct tasklet;
struct pci_dev *pcid;
struct Scsi_Host *host;
unsigned int index;
char name[32];
struct timer_list timer;
struct esas2r_firmware firmware;
wait_queue_head_t nvram_waiter;
int nvram_command_done;
wait_queue_head_t fm_api_waiter;
int fm_api_command_done;
wait_queue_head_t vda_waiter;
int vda_command_done;
u8 *vda_buffer;
u64 ppvda_buffer;
#define VDA_BUFFER_HEADER_SZ (offsetof(struct atto_ioctl_vda, data))
#define VDA_MAX_BUFFER_SIZE (0x40000 + VDA_BUFFER_HEADER_SZ)
wait_queue_head_t fs_api_waiter;
int fs_api_command_done;
u64 ppfs_api_buffer;
u8 *fs_api_buffer;
u32 fs_api_buffer_size;
wait_queue_head_t buffered_ioctl_waiter;
int buffered_ioctl_done;
int uncached_size;
struct workqueue_struct *fw_event_q;
struct list_head fw_event_list;
spinlock_t fw_event_lock;
u8 fw_events_off; /* if '1', then ignore events */
char fw_event_q_name[ESAS2R_KOBJ_NAME_LEN];
/*
* intr_mode stores the interrupt mode currently being used by this
* adapter. it is based on the interrupt_mode module parameter, but
* can be changed based on the ability (or not) to utilize the
* mode requested by the parameter.
*/
int intr_mode;
#define INTR_MODE_LEGACY 0
#define INTR_MODE_MSI 1
#define INTR_MODE_MSIX 2
struct esas2r_sg_context fm_api_sgc;
u8 *save_offset;
struct list_head vrq_mds_head;
struct esas2r_mem_desc *vrq_mds;
int num_vrqs;
struct mutex fm_api_mutex;
struct mutex fs_api_mutex;
struct semaphore nvram_semaphore;
struct atto_ioctl *local_atto_ioctl;
u8 fw_coredump_buff[ESAS2R_FWCOREDUMP_SZ];
unsigned int sysfs_fw_created:1;
unsigned int sysfs_fs_created:1;
unsigned int sysfs_vda_created:1;
unsigned int sysfs_hw_created:1;
unsigned int sysfs_live_nvram_created:1;
unsigned int sysfs_default_nvram_created:1;
};
/*
* Function Declarations
* SCSI functions
*/
const char *esas2r_info(struct Scsi_Host *);
int esas2r_write_params(struct esas2r_adapter *a, struct esas2r_request *rq,
struct esas2r_sas_nvram *data);
int esas2r_ioctl_handler(void *hostdata, unsigned int cmd, void __user *arg);
int esas2r_ioctl(struct scsi_device *dev, unsigned int cmd, void __user *arg);
u8 handle_hba_ioctl(struct esas2r_adapter *a,
struct atto_ioctl *ioctl_hba);
int esas2r_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd);
int esas2r_show_info(struct seq_file *m, struct Scsi_Host *sh);
long esas2r_proc_ioctl(struct file *fp, unsigned int cmd, unsigned long arg);
/* SCSI error handler (eh) functions */
int esas2r_eh_abort(struct scsi_cmnd *cmd);
int esas2r_device_reset(struct scsi_cmnd *cmd);
int esas2r_host_reset(struct scsi_cmnd *cmd);
int esas2r_bus_reset(struct scsi_cmnd *cmd);
int esas2r_target_reset(struct scsi_cmnd *cmd);
/* Internal functions */
int esas2r_init_adapter(struct Scsi_Host *host, struct pci_dev *pcid,
int index);
int esas2r_read_fw(struct esas2r_adapter *a, char *buf, long off, int count);
int esas2r_write_fw(struct esas2r_adapter *a, const char *buf, long off,
int count);
int esas2r_read_vda(struct esas2r_adapter *a, char *buf, long off, int count);
int esas2r_write_vda(struct esas2r_adapter *a, const char *buf, long off,
int count);
int esas2r_read_fs(struct esas2r_adapter *a, char *buf, long off, int count);
int esas2r_write_fs(struct esas2r_adapter *a, const char *buf, long off,
int count);
void esas2r_adapter_tasklet(unsigned long context);
irqreturn_t esas2r_interrupt(int irq, void *dev_id);
irqreturn_t esas2r_msi_interrupt(int irq, void *dev_id);
void esas2r_kickoff_timer(struct esas2r_adapter *a);
extern const struct dev_pm_ops esas2r_pm_ops;
void esas2r_fw_event_off(struct esas2r_adapter *a);
void esas2r_fw_event_on(struct esas2r_adapter *a);
bool esas2r_nvram_write(struct esas2r_adapter *a, struct esas2r_request *rq,
struct esas2r_sas_nvram *nvram);
void esas2r_nvram_get_defaults(struct esas2r_adapter *a,
struct esas2r_sas_nvram *nvram);
void esas2r_complete_request_cb(struct esas2r_adapter *a,
struct esas2r_request *rq);
void esas2r_reset_detected(struct esas2r_adapter *a);
void esas2r_target_state_changed(struct esas2r_adapter *ha, u16 targ_id,
u8 state);
int esas2r_req_status_to_error(u8 req_stat);
void esas2r_kill_adapter(int i);
void esas2r_free_request(struct esas2r_adapter *a, struct esas2r_request *rq);
struct esas2r_request *esas2r_alloc_request(struct esas2r_adapter *a);
u32 esas2r_get_uncached_size(struct esas2r_adapter *a);
bool esas2r_init_adapter_struct(struct esas2r_adapter *a,
void **uncached_area);
bool esas2r_check_adapter(struct esas2r_adapter *a);
bool esas2r_init_adapter_hw(struct esas2r_adapter *a, bool init_poll);
void esas2r_start_request(struct esas2r_adapter *a, struct esas2r_request *rq);
bool esas2r_send_task_mgmt(struct esas2r_adapter *a,
struct esas2r_request *rqaux, u8 task_mgt_func);
void esas2r_do_tasklet_tasks(struct esas2r_adapter *a);
void esas2r_adapter_interrupt(struct esas2r_adapter *a);
void esas2r_do_deferred_processes(struct esas2r_adapter *a);
void esas2r_reset_bus(struct esas2r_adapter *a);
void esas2r_reset_adapter(struct esas2r_adapter *a);
void esas2r_timer_tick(struct esas2r_adapter *a);
const char *esas2r_get_model_name(struct esas2r_adapter *a);
const char *esas2r_get_model_name_short(struct esas2r_adapter *a);
u32 esas2r_stall_execution(struct esas2r_adapter *a, u32 start_time,
u32 *delay);
void esas2r_build_flash_req(struct esas2r_adapter *a,
struct esas2r_request *rq,
u8 sub_func,
u8 cksum,
u32 addr,
u32 length);
void esas2r_build_mgt_req(struct esas2r_adapter *a,
struct esas2r_request *rq,
u8 sub_func,
u8 scan_gen,
u16 dev_index,
u32 length,
void *data);
void esas2r_build_ae_req(struct esas2r_adapter *a, struct esas2r_request *rq);
void esas2r_build_cli_req(struct esas2r_adapter *a,
struct esas2r_request *rq,
u32 length,
u32 cmd_rsp_len);
void esas2r_build_ioctl_req(struct esas2r_adapter *a,
struct esas2r_request *rq,
u32 length,
u8 sub_func);
void esas2r_build_cfg_req(struct esas2r_adapter *a,
struct esas2r_request *rq,
u8 sub_func,
u32 length,
void *data);
void esas2r_power_down(struct esas2r_adapter *a);
bool esas2r_power_up(struct esas2r_adapter *a, bool init_poll);
void esas2r_wait_request(struct esas2r_adapter *a, struct esas2r_request *rq);
u32 esas2r_map_data_window(struct esas2r_adapter *a, u32 addr_lo);
bool esas2r_process_fs_ioctl(struct esas2r_adapter *a,
struct esas2r_ioctl_fs *fs,
struct esas2r_request *rq,
struct esas2r_sg_context *sgc);
bool esas2r_read_flash_block(struct esas2r_adapter *a, void *to, u32 from,
u32 size);
bool esas2r_read_mem_block(struct esas2r_adapter *a, void *to, u32 from,
u32 size);
bool esas2r_fm_api(struct esas2r_adapter *a, struct esas2r_flash_img *fi,
struct esas2r_request *rq, struct esas2r_sg_context *sgc);
void esas2r_force_interrupt(struct esas2r_adapter *a);
void esas2r_local_start_request(struct esas2r_adapter *a,
struct esas2r_request *rq);
void esas2r_process_adapter_reset(struct esas2r_adapter *a);
void esas2r_complete_request(struct esas2r_adapter *a,
struct esas2r_request *rq);
void esas2r_dummy_complete(struct esas2r_adapter *a,
struct esas2r_request *rq);
void esas2r_ae_complete(struct esas2r_adapter *a, struct esas2r_request *rq);
void esas2r_start_vda_request(struct esas2r_adapter *a,
struct esas2r_request *rq);
bool esas2r_read_flash_rev(struct esas2r_adapter *a);
bool esas2r_read_image_type(struct esas2r_adapter *a);
bool esas2r_nvram_read_direct(struct esas2r_adapter *a);
bool esas2r_nvram_validate(struct esas2r_adapter *a);
void esas2r_nvram_set_defaults(struct esas2r_adapter *a);
bool esas2r_print_flash_rev(struct esas2r_adapter *a);
void esas2r_send_reset_ae(struct esas2r_adapter *a, bool pwr_mgt);
bool esas2r_init_msgs(struct esas2r_adapter *a);
bool esas2r_is_adapter_present(struct esas2r_adapter *a);
void esas2r_nuxi_mgt_data(u8 function, void *data);
void esas2r_nuxi_cfg_data(u8 function, void *data);
void esas2r_nuxi_ae_data(union atto_vda_ae *ae);
void esas2r_reset_chip(struct esas2r_adapter *a);
void esas2r_log_request_failure(struct esas2r_adapter *a,
struct esas2r_request *rq);
void esas2r_polled_interrupt(struct esas2r_adapter *a);
bool esas2r_ioreq_aborted(struct esas2r_adapter *a, struct esas2r_request *rq,
u8 status);
bool esas2r_build_sg_list_sge(struct esas2r_adapter *a,
struct esas2r_sg_context *sgc);
bool esas2r_build_sg_list_prd(struct esas2r_adapter *a,
struct esas2r_sg_context *sgc);
void esas2r_targ_db_initialize(struct esas2r_adapter *a);
void esas2r_targ_db_remove_all(struct esas2r_adapter *a, bool notify);
void esas2r_targ_db_report_changes(struct esas2r_adapter *a);
struct esas2r_target *esas2r_targ_db_add_raid(struct esas2r_adapter *a,
struct esas2r_disc_context *dc);
struct esas2r_target *esas2r_targ_db_add_pthru(struct esas2r_adapter *a,
struct esas2r_disc_context *dc,
u8 *ident,
u8 ident_len);
void esas2r_targ_db_remove(struct esas2r_adapter *a, struct esas2r_target *t);
struct esas2r_target *esas2r_targ_db_find_by_sas_addr(struct esas2r_adapter *a,
u64 *sas_addr);
struct esas2r_target *esas2r_targ_db_find_by_ident(struct esas2r_adapter *a,
void *identifier,
u8 ident_len);
u16 esas2r_targ_db_find_next_present(struct esas2r_adapter *a, u16 target_id);
struct esas2r_target *esas2r_targ_db_find_by_virt_id(struct esas2r_adapter *a,
u16 virt_id);
u16 esas2r_targ_db_get_tgt_cnt(struct esas2r_adapter *a);
void esas2r_disc_initialize(struct esas2r_adapter *a);
void esas2r_disc_start_waiting(struct esas2r_adapter *a);
void esas2r_disc_check_for_work(struct esas2r_adapter *a);
void esas2r_disc_check_complete(struct esas2r_adapter *a);
void esas2r_disc_queue_event(struct esas2r_adapter *a, u8 disc_evt);
bool esas2r_disc_start_port(struct esas2r_adapter *a);
void esas2r_disc_local_start_request(struct esas2r_adapter *a,
struct esas2r_request *rq);
bool esas2r_set_degraded_mode(struct esas2r_adapter *a, char *error_str);
bool esas2r_process_vda_ioctl(struct esas2r_adapter *a,
struct atto_ioctl_vda *vi,
struct esas2r_request *rq,
struct esas2r_sg_context *sgc);
void esas2r_queue_fw_event(struct esas2r_adapter *a,
enum fw_event_type type,
void *data,
int data_sz);
/* Inline functions */
/* Allocate a chip scatter/gather list entry */
static inline struct esas2r_mem_desc *esas2r_alloc_sgl(struct esas2r_adapter *a)
{
unsigned long flags;
struct list_head *sgl;
struct esas2r_mem_desc *result = NULL;
spin_lock_irqsave(&a->sg_list_lock, flags);
if (likely(!list_empty(&a->free_sg_list_head))) {
sgl = a->free_sg_list_head.next;
result = list_entry(sgl, struct esas2r_mem_desc, next_desc);
list_del_init(sgl);
}
spin_unlock_irqrestore(&a->sg_list_lock, flags);
return result;
}
/* Initialize a scatter/gather context */
static inline void esas2r_sgc_init(struct esas2r_sg_context *sgc,
struct esas2r_adapter *a,
struct esas2r_request *rq,
struct atto_vda_sge *first)
{
sgc->adapter = a;
sgc->first_req = rq;
/*
* set the limit pointer such that an SGE pointer above this value
* would be the first one to overflow the SGL.
*/
sgc->sge.a64.limit = (struct atto_vda_sge *)((u8 *)rq->vrq
+ (sizeof(union
atto_vda_req) /
8)
- sizeof(struct
atto_vda_sge));
if (first) {
sgc->sge.a64.last =
sgc->sge.a64.curr = first;
rq->vrq->scsi.sg_list_offset = (u8)
((u8 *)first -
(u8 *)rq->vrq);
} else {
sgc->sge.a64.last =
sgc->sge.a64.curr = &rq->vrq->scsi.u.sge[0];
rq->vrq->scsi.sg_list_offset =
(u8)offsetof(struct atto_vda_scsi_req, u.sge);
}
sgc->sge.a64.chain = NULL;
}
static inline void esas2r_rq_init_request(struct esas2r_request *rq,
struct esas2r_adapter *a)
{
union atto_vda_req *vrq = rq->vrq;
INIT_LIST_HEAD(&rq->sg_table_head);
rq->data_buf = (void *)(vrq + 1);
rq->interrupt_cb = NULL;
rq->comp_cb = esas2r_complete_request_cb;
rq->flags = 0;
rq->timeout = 0;
rq->req_stat = RS_PENDING;
rq->req_type = RT_INI_REQ;
/* clear the outbound response */
rq->func_rsp.dwords[0] = 0;
rq->func_rsp.dwords[1] = 0;
/*
* clear the size of the VDA request. esas2r_build_sg_list() will
* only allow the size of the request to grow. there are some
* management requests that go through there twice and the second
* time through sets a smaller request size. if this is not modified
* at all we'll set it to the size of the entire VDA request.
*/
rq->vda_req_sz = RQ_SIZE_DEFAULT;
/* req_table entry should be NULL at this point - if not, halt */
if (a->req_table[LOWORD(vrq->scsi.handle)]) {
esas2r_bugon();
}
/* fill in the table for this handle so we can get back to the
* request.
*/
a->req_table[LOWORD(vrq->scsi.handle)] = rq;
/*
* add a reference number to the handle to make it unique (until it
* wraps of course) while preserving the least significant word
*/
vrq->scsi.handle = (a->cmd_ref_no++ << 16) | (u16)vrq->scsi.handle;
/*
* the following formats a SCSI request. the caller can override as
* necessary. clear_vda_request can be called to clear the VDA
* request for another type of request.
*/
vrq->scsi.function = VDA_FUNC_SCSI;
vrq->scsi.sense_len = SENSE_DATA_SZ;
/* clear out sg_list_offset and chain_offset */
vrq->scsi.sg_list_offset = 0;
vrq->scsi.chain_offset = 0;
vrq->scsi.flags = 0;
vrq->scsi.reserved = 0;
/* set the sense buffer to be the data payload buffer */
vrq->scsi.ppsense_buf
= cpu_to_le64(rq->vrq_md->phys_addr +
sizeof(union atto_vda_req));
}
static inline void esas2r_rq_free_sg_lists(struct esas2r_request *rq,
struct esas2r_adapter *a)
{
unsigned long flags;
if (list_empty(&rq->sg_table_head))
return;
spin_lock_irqsave(&a->sg_list_lock, flags);
list_splice_tail_init(&rq->sg_table_head, &a->free_sg_list_head);
spin_unlock_irqrestore(&a->sg_list_lock, flags);
}
static inline void esas2r_rq_destroy_request(struct esas2r_request *rq,
struct esas2r_adapter *a)
{
esas2r_rq_free_sg_lists(rq, a);
a->req_table[LOWORD(rq->vrq->scsi.handle)] = NULL;
rq->data_buf = NULL;
}
static inline bool esas2r_is_tasklet_pending(struct esas2r_adapter *a)
{
return test_bit(AF_BUSRST_NEEDED, &a->flags) ||
test_bit(AF_BUSRST_DETECTED, &a->flags) ||
test_bit(AF_CHPRST_NEEDED, &a->flags) ||
test_bit(AF_CHPRST_DETECTED, &a->flags) ||
test_bit(AF_PORT_CHANGE, &a->flags);
}
/*
* Build the scatter/gather list for an I/O request according to the
* specifications placed in the esas2r_sg_context. The caller must initialize
* struct esas2r_sg_context prior to the initial call by calling
* esas2r_sgc_init()
*/
static inline bool esas2r_build_sg_list(struct esas2r_adapter *a,
struct esas2r_request *rq,
struct esas2r_sg_context *sgc)
{
if (unlikely(le32_to_cpu(rq->vrq->scsi.length) == 0))
return true;
return (*a->build_sgl)(a, sgc);
}
static inline void esas2r_disable_chip_interrupts(struct esas2r_adapter *a)
{
if (atomic_inc_return(&a->dis_ints_cnt) == 1)
esas2r_write_register_dword(a, MU_INT_MASK_OUT,
ESAS2R_INT_DIS_MASK);
}
static inline void esas2r_enable_chip_interrupts(struct esas2r_adapter *a)
{
if (atomic_dec_return(&a->dis_ints_cnt) == 0)
esas2r_write_register_dword(a, MU_INT_MASK_OUT,
ESAS2R_INT_ENB_MASK);
}
/* Schedule a TASKLET to perform non-interrupt tasks that may require delays
* or long completion times.
*/
static inline void esas2r_schedule_tasklet(struct esas2r_adapter *a)
{
/* make sure we don't schedule twice */
if (!test_and_set_bit(AF_TASKLET_SCHEDULED, &a->flags))
tasklet_hi_schedule(&a->tasklet);
}
static inline void esas2r_enable_heartbeat(struct esas2r_adapter *a)
{
if (!test_bit(AF_DEGRADED_MODE, &a->flags) &&
!test_bit(AF_CHPRST_PENDING, &a->flags) &&
(a->nvram->options2 & SASNVR2_HEARTBEAT))
set_bit(AF_HEARTBEAT_ENB, &a->flags);
else
clear_bit(AF_HEARTBEAT_ENB, &a->flags);
}
static inline void esas2r_disable_heartbeat(struct esas2r_adapter *a)
{
clear_bit(AF_HEARTBEAT_ENB, &a->flags);
clear_bit(AF_HEARTBEAT, &a->flags);
}
/* Set the initial state for resetting the adapter on the next pass through
* esas2r_do_deferred.
*/
static inline void esas2r_local_reset_adapter(struct esas2r_adapter *a)
{
esas2r_disable_heartbeat(a);
set_bit(AF_CHPRST_NEEDED, &a->flags);
set_bit(AF_CHPRST_PENDING, &a->flags);
set_bit(AF_DISC_PENDING, &a->flags);
}
/* See if an interrupt is pending on the adapter. */
static inline bool esas2r_adapter_interrupt_pending(struct esas2r_adapter *a)
{
u32 intstat;
if (a->int_mask == 0)
return false;
intstat = esas2r_read_register_dword(a, MU_INT_STATUS_OUT);
if ((intstat & a->int_mask) == 0)
return false;
esas2r_disable_chip_interrupts(a);
a->int_stat = intstat;
a->int_mask = 0;
return true;
}
static inline u16 esas2r_targ_get_id(struct esas2r_target *t,
struct esas2r_adapter *a)
{
return (u16)(uintptr_t)(t - a->targetdb);
}
/* Build and start an asynchronous event request */
static inline void esas2r_start_ae_request(struct esas2r_adapter *a,
struct esas2r_request *rq)
{
unsigned long flags;
esas2r_build_ae_req(a, rq);
spin_lock_irqsave(&a->queue_lock, flags);
esas2r_start_vda_request(a, rq);
spin_unlock_irqrestore(&a->queue_lock, flags);
}
static inline void esas2r_comp_list_drain(struct esas2r_adapter *a,
struct list_head *comp_list)
{
struct esas2r_request *rq;
struct list_head *element, *next;
list_for_each_safe(element, next, comp_list) {
rq = list_entry(element, struct esas2r_request, comp_list);
list_del_init(element);
esas2r_complete_request(a, rq);
}
}
/* sysfs handlers */
extern struct bin_attribute bin_attr_fw;
extern struct bin_attribute bin_attr_fs;
extern struct bin_attribute bin_attr_vda;
extern struct bin_attribute bin_attr_hw;
extern struct bin_attribute bin_attr_live_nvram;
extern struct bin_attribute bin_attr_default_nvram;
#endif /* ESAS2R_H */
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