mirror of
https://github.com/SCST-project/scst.git
synced 2026-05-21 12:41:26 +00:00
46a67fdb51
I've updated the MPT fusion target driver for LSI SCSI/FC/SAS HBAs. The original SCST MPT driver was based on the 1.00.13 LSI sample target driver. LSI has since released version 1.00.14 of the sample target driver. I've ported all the changes from .13 to .14 into the SCST MPT driver for consistency. I've also updated the SCST MPT driver to compile under 2.6.24 and 2.6.25.4. Finally, I force the SCSI parallel transfer rate to very slow depending on the SCSI HBA firmware revision. Newer versions of SCSI HBA firmware have a bug where the incorrect amount of data is transferred for non-divisible-by-4 length transfers (like standard 14 byte REQUEST SENSE). LSI is aware of the problem and I'll update the driver to restore functionality upon a new good SCSI HBA firmware release. I still have not confirmed operation with LSI SAS or FC HBAs. Signed-off-by: Erik Habbinga <erikhabbinga@inphase-tech.com> Changes: ./mpt/mpt_scst.h - differences between LSI sample target drivers 1.00.13 and 1.00.14 ./mpt/Kconfig - remove some unnecessary white space ./mpt/mpt_scst.c - differences between LSI sample target drivers 1.00.13 and 1.00.14 - changes for kernel 2.6.24 and 2.6.25.4 - force slow transfers for newer SCSI HBA firmware versions ./mpt/Makefile - simplified for inclusion into kernel source tree ./mpt/in-tree/Kconfig-2.6.24.diff - patch against 2.6.24 and 2.6.25.4 drivers/message/fusion/Kconfig ./mpt/in-tree/Makefile.diff - changed to work with generate-kernel-patch script git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@387 d57e44dd-8a1f-0410-8b47-8ef2f437770f
381 lines
11 KiB
C
381 lines
11 KiB
C
#ifndef __MPT_SCST_H
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#define __MPT_SCST_H
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#if defined(MODULE) && !defined(__GENKSYMS__)
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#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19))
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#include <linux/config.h>
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#else
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#include <linux/autoconf.h>
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#endif
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#include <linux/module.h>
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#endif
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#ifdef __linux__
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#include <linux/delay.h>
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#include <linux/errno.h>
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/slab.h>
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#include <linux/miscdevice.h>
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#include <linux/proc_fs.h>
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#include <linux/smp_lock.h>
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#include <linux/highmem.h>
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#include <linux/version.h>
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#include <scsi/scsi_device.h>
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#include <asm/uaccess.h>
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#include <asm/io.h>
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#include <asm/div64.h>
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#endif
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#define _HS_SLEEP ,0
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#define _IOC_ID ioc
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#define _HANDLE_IOC_ID ioc
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#ifndef MPT_STM_64_BIT_DMA /* determines the size of DMA addresses */
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#define MPT_STM_64_BIT_DMA 1
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#endif
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#include "mptbase.h"
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#ifndef MPI_IOCLOGINFO_FC_LINK_ALREADY_INITIALIZED
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#define MPI_IOCLOGINFO_FC_LINK_ALREADY_INITIALIZED 0x24000002
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#endif
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#define MF_TO_INDEX(mf) le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx)
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#include "scsi3.h"
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/*****************************************************************************/
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#ifdef MPI_STM_IO_DEBUG
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#define dioprintk printk
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#else
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#define dioprintk printk
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#endif
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typedef MPI_TARGET_FCP_CMD_BUFFER FCP_CMD;
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typedef MPI_TARGET_SCSI_SPI_CMD_BUFFER SCSI_CMD;
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#define SSP_CMD_FRAME 0x06
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#define SSP_TASK_FRAME 0x16
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typedef MPI_TARGET_SSP_CMD_BUFFER SSP_CMD;
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typedef MPI_TARGET_SSP_TASK_BUFFER SSP_TASK;
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#define FCP_REQUEST_CONFIRM (1<<4)
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#define FCP_RESID_UNDER (1<<3)
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#define FCP_RESID_OVER (1<<2)
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#define FCP_SENSE_LEN_VALID (1<<1)
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#define FCP_RSP_LEN_VALID (1<<0)
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typedef struct _FCP_RSP /* this struct is wrong in rev 1.02.04 of mpi_targ.h */
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{
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U8 Reserved0[8]; /* 00h */
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U8 Reserved1[2]; /* 08h */
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U8 FcpFlags; /* 0Ah */
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U8 FcpStatus; /* 0Bh */
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U32 FcpResid; /* 0Ch */
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U32 FcpSenseLength; /* 10h */
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U32 FcpResponseLength; /* 14h */
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U8 FcpResponseData[8]; /* 18h */
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U8 FcpSenseData[32]; /* Pad to 64 bytes */ /* 20h */
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} FCP_RSP;
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#define SCSI_SENSE_LEN_VALID (1<<1)
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#define SCSI_RSP_LEN_VALID (1<<0)
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typedef MPI_TARGET_SCSI_SPI_STATUS_IU SCSI_RSP;
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#define SSP_SENSE_LEN_VALID (1<<1)
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#define SSP_RSP_LEN_VALID (1<<0)
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typedef MPI_TARGET_SSP_RSP_IU SSP_RSP;
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/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
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/*
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* Fusion MPT STM private structures
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*/
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#define IsFc(priv) \
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(priv->ioc->pfacts[0].PortType == MPI_PORTFACTS_PORTTYPE_FC)
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#define IsScsi(priv) \
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(priv->ioc->pfacts[0].PortType == MPI_PORTFACTS_PORTTYPE_SCSI)
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#define IsSas(priv) \
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(priv->ioc->pfacts[0].PortType == MPI_PORTFACTS_PORTTYPE_SAS)
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#define ABORT_ALL (-1)
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#define NUM_CMD_BUFFERS 128
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#define NUM_ELS_BUFFERS 64
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#define NUM_ALIASES 0 /* 0 to 125, hardware restriction */
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#define ELS 0x22
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#define FC4LS 0x32
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#define ABTS 0x81
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#define BA_ACC 0x84
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#define LS_RJT 0x01
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#define LS_ACC 0x02
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#define PLOGI 0x03
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#define LOGO 0x05
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#define SRR 0x14
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#define PRLI 0x20
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#define PRLO 0x21
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#define ADISC 0x52
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#define RSCN 0x61
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typedef struct _MPT_SGE
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{
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u32 length;
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#if MPT_STM_64_BIT_DMA
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u64 address;
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#else
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u32 address;
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#endif
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} MPT_SGE;
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#define NUM_SGES 64
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#define NUM_CHAINS (NUM_SGES/8) /* one chain for every 8 SGEs */
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typedef struct _CMD {
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u8 cmd[64];
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u8 rsp[64];
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MPT_SGE chain_sge[NUM_SGES+NUM_CHAINS];
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u32 reply_word;
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int alias;
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int lun;
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int tag;
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} CMD;
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typedef struct _FC_ELS {
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u32 fc_els[32];
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} FC_ELS;
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typedef struct _MPT_STM_HW {
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CMD cmd_buf[NUM_CMD_BUFFERS];
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FC_ELS fc_link_serv_buf[NUM_ELS_BUFFERS];
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u32 config_buf[256];
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u32 ctsend_buf[256];
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u32 exlink_buf[32];
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} MPT_STM_HW;
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typedef struct _MPT_SGL
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{
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u32 num_sges;
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MPT_SGE sge[NUM_SGES];
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} MPT_SGL;
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typedef struct _MPT_STM_PRIV
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{
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MPT_ADAPTER *ioc;
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int enable_target_mode;
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int fcp2_capable;
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int num_sge_chain;
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int num_sge_target_assist;
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int num_cmd_buffers;
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int num_els_buffers;
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int num_aliases;
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MPT_STM_HW *hw;
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dma_addr_t hw_dma;
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U64 wwnn;
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U64 wwpn;
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int port_id;
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int scsi_port_config;
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int scsi_id_config;
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int protocol;
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volatile int port_flags;
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volatile int port_speed;
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volatile int port_state;
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volatile int device_changed;
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int port_enable_loginfo;
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volatile int port_enable_pending;
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volatile int target_mode_abort_pending;
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volatile int link_serv_abort_pending;
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volatile int fc_primitive_send_pending;
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volatile int ex_link_service_send_pending;
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volatile int config_pending;
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volatile int in_reset;
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volatile int poll_enabled;
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volatile int exiting;
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MPT_FRAME_HDR *config_mf;
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ConfigReply_t config_rep;
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volatile int io_state[NUM_CMD_BUFFERS];
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volatile int els_state[NUM_ELS_BUFFERS];
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MPT_FRAME_HDR *current_mf[NUM_CMD_BUFFERS];
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MPT_FRAME_HDR *status_deferred_mf[NUM_CMD_BUFFERS];
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MPT_SGL sgl;
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SCSIPortPage0_t SCSIPortPage0;
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SCSIPortPage1_t SCSIPortPage1;
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SCSIPortPage2_t SCSIPortPage2;
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#define NUM_SCSI_DEVICES 16
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SCSIDevicePage1_t SCSIDevicePage1[NUM_SCSI_DEVICES];
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struct mpt_tgt *tgt;
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struct scst_cmd *scst_cmd[NUM_CMD_BUFFERS];
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atomic_t pending_sense[NUM_SCSI_DEVICES];
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u8 pending_sense_buffer[NUM_SCSI_DEVICES][SCSI_SENSE_BUFFERSIZE];
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} MPT_STM_PRIV;
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#define IO_STATE_POSTED 0x1
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#define IO_STATE_DATA_SENT 0x2
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#define IO_STATE_STATUS_SENT 0x4
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#define IO_STATE_STATUS_DEFERRED 0x8
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#define IO_STATE_INCOMPLETE 0x10
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#define IO_STATE_AUTO_REPOST 0x20
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#define IO_STATE_ABORTED 0x40
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#define IO_STATE_HIGH_PRIORITY 0x80
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#define IO_STATE_REQUEST_ABORTED 0x100
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#define IO_STATE_REISSUE_REQUEST 0x200
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#define IO_STATE_ADJUST_OFFSET 0x400
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#define IO_STATE_CONVERT_TA_TO_TSS 0x800
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#define IO_STATE_REDO_COMMAND 0x1000
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#define get2bytes(x, y) ((x[y] << 8) + x[y+1])
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#define get3bytes(x, y) ((x[y] << 16) + (x[y+1] << 8) + x[y+2])
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#define get4bytes(x, y) ((x[y] << 24) + (x[y+1] << 16) + (x[y+2] << 8) + x[y+3])
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#define get8bytes(x, y) (((u64)get4bytes(x, y) << 32) + get4bytes(x, y+4))
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#define InitiatorIndex_0100 Reserved_0100_InitiatorIndex
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#define FWVersion_0101 Reserved_0101_FWVersion
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#define EventDataSasPhyLinkStatus_t MpiEventDataSasPhyLinkStatus_t
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#ifndef MPI_FCPORTPAGE1_FLAGS_FORCE_USE_NOSEEPROM_WWNS
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#define MPI_FCPORTPAGE1_FLAGS_FORCE_USE_NOSEEPROM_WWNS (0x02000000)
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#endif
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#ifndef PRIORITY_REASON_TARGET_BUSY
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#define PRIORITY_REASON_TARGET_BUSY (0x09)
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#endif
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#if MPT_STM_64_BIT_DMA
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#define MPT_STM_SIMPLE SGESimple64_t
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#define MPT_STM_CHAIN SGEChain64_t
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#define MPI_SGE_FLAGS_MPT_STM_ADDRESSING MPI_SGE_FLAGS_64_BIT_ADDRESSING
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#define stm_get_dma_addr(x, y) \
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x = le32_to_cpu(y.Low); \
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if (sizeof(dma_addr_t) == sizeof(u64)) \
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x |= (u64)le32_to_cpu(y.High)<<32;
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#define stm_set_dma_addr(x, y) \
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x.Low = cpu_to_le32(y); \
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if (sizeof(dma_addr_t) == sizeof(u64)) \
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x.High = cpu_to_le32((u64)y>>32); \
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else \
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x.High = 0;
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#else
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#define MPT_STM_SIMPLE SGESimple32_t
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#define MPT_STM_CHAIN SGEChain32_t
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#define MPI_SGE_FLAGS_MPT_STM_ADDRESSING MPI_SGE_FLAGS_32_BIT_ADDRESSING
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#define stm_get_dma_addr(x, y) \
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x = le32_to_cpu(y);
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#define stm_set_dma_addr(x, y) \
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x = cpu_to_le32(y);
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#endif
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#ifndef MPT_MAX_ADAPTERS
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#define MPT_MAX_ADAPTERS 18
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#endif
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#ifndef MPI_MANUFACTPAGE_DEVICEID_FC949X
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#define MPI_MANUFACTPAGE_DEVICEID_FC949X 0x640
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#endif
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#ifndef MPI_MANUFACTPAGE_DEVICEID_FC939X
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#define MPI_MANUFACTPAGE_DEVICEID_FC939X 0x642
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#endif
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#ifndef MPI_IOCSTATUS_EEDP_GUARD_ERROR
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#define MPI_IOCSTATUS_EEDP_GUARD_ERROR 0x4d
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#endif
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#ifndef MPI_IOCSTATUS_EEDP_REF_TAG_ERROR
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#define MPI_IOCSTATUS_EEDP_REF_TAG_ERROR 0x4e
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#endif
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#ifndef MPI_IOCSTATUS_EEDP_APP_TAG_ERROR
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#define MPI_IOCSTATUS_EEDP_APP_TAG_ERROR 0x4f
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#endif
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#define MPT_MAX_CDB_LEN 16
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#define MPT_TIMEOUT 30
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/* Immediate notify status constants */
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#define IMM_NTFY_LIP_RESET MPI_EVENT_LOOP_STATE_CHANGE
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#define IMM_NTFY_IOCB_OVERFLOW 0x0016
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#define IMM_NTFY_ABORT_TASK 0x0020
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#define IMM_NTFY_PORT_LOGOUT MPI_EVENT_LOGOUT
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#define IMM_NTFY_PORT_CONFIG MPI_EVENT_LINK_STATUS_CHANGE
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#define IMM_NTFY_GLBL_TPRLO MPI_EVENT_LINK_STATUS_CHANGE
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#define IMM_NTFY_GLBL_LOGO MPI_EVENT_LINK_STATUS_CHANGE
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#define IMM_NTFY_RESOURCE 0x0034
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#define IMM_NTFY_MSG_RX 0x0036
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/* Immediate notify task flags */
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#define IMM_NTFY_ABORT_TS 0x01
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#define IMM_NTFY_CLEAR_TS 0x04
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#define IMM_NTFY_LUN_RESET1 0x08
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#define IMM_NTFY_LUN_RESET2 0x10
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#define IMM_NTFY_TARGET_RESET 0x20
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#define IMM_NTFY_CLEAR_ACA 0x40
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/* Command's states */
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#define MPT_STATE_NEW 1 /* New command and SCST processes it */
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#define MPT_STATE_NEED_DATA 2 /* SCST needs data to process */
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#define MPT_STATE_DATA_IN 3 /* Data arrived and SCST processes it */
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#define MPT_STATE_DATA_OUT 4
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#define MPT_STATE_PROCESSED 5 /* SCST done processing */
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/* Target's flags */
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#define MPT_TGT_SHUTDOWN 0 /* The driver is being released */
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#define MPT_TGT_ENABLE_64BIT_ADDR 1 /* 64-bits PCI addressing anables */
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/* Session's flags */
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#define MPT_SESS_INITING 0 /* The session is being unregistered */
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#define MPT_SESS_SHUTDOWN 1 /* The session is being unregistered */
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/* pending sense states */
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#define MPT_STATUS_SENSE_IDLE 0 /* no cached pending sense */
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#define MPT_STATUS_SENSE_ATTEMPT 1 /* attempt to send status and sense */
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#define MPT_STATUS_SENSE_NOT_SENT 2 /* sense couldn't be sent with status */
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#define MPT_STATUS_SENSE_HANDLE_RQ 3 /* REQUEST SENSE handled with cached sense */
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struct mpt_cmd
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{
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struct mpt_sess *sess;
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struct scst_cmd *scst_cmd;
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MPT_STM_PRIV *priv;
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CMD *CMD;
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u32 reply_word;
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struct list_head delayed_cmds_entry;
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int state;
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dma_addr_t dma_handle;
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};
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struct mpt_sess
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{
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struct scst_session *scst_sess;
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struct mpt_tgt *tgt;
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int init_index;
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unsigned long sess_flags;
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struct list_head delayed_cmds;
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};
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struct mpt_tgt
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{
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struct scst_tgt *scst_tgt;
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MPT_STM_PRIV *priv;
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int datasegs_per_cmd, datasegs_per_cont;
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unsigned long tgt_flags;
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atomic_t sess_count;
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wait_queue_head_t waitQ;
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struct mpt_sess *sess[256];
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int target_enable;
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};
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struct mpt_mgmt_cmd
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{
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struct mpt_sess *sess;
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int task_mgmt;
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};
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#endif
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