Commit dea3101e authored by 's avatar Committed by James Bottomley
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lpfc: add Emulex FC driver version 8.0.28



From: 	James.Smart@Emulex.Com

Modified for kernel import and
Signed-off-by: default avatarJames Bottomley <James.Bottomley@SteelEye.com>
parent 8e879041
This diff is collapsed.
LPFC Driver Release Notes:
=============================================================================
IMPORTANT:
Starting in the 8.0.17 release, the driver began to be targeted strictly
toward the upstream kernel. As such, we removed #ifdefs for older kernels
(pre 2.6.10). The 8.0.16 release should be used if the driver is to be
run on one of the older kernels.
The proposed modifications to the transport layer for FC remote ports
and extended attribute support is now part of the upstream kernel
as of 2.6.12. We no longer need to provide patches for this support,
nor a *full* version which has old an new kernel support.
The driver now requires a 2.6.12 (if pre-release, 2.6.12-rc1) or later
kernel.
Please heed these dependencies....
********************************************************************
The following information is provided for additional background on the
history of the driver as we push for upstream acceptance.
Cable pull and temporary device Loss:
In older revisions of the lpfc driver, the driver internally queued i/o
received from the midlayer. In the cases where a cable was pulled, link
jitter, or a device temporarily loses connectivity (due to its cable
being removed, a switch rebooting, or a device reboot), the driver could
hide the disappearance of the device from the midlayer. I/O's issued to
the LLDD would simply be queued for a short duration, allowing the device
to reappear or link come back alive, with no inadvertant side effects
to the system. If the driver did not hide these conditions, i/o would be
errored by the driver, the mid-layer would exhaust its retries, and the
device would be taken offline. Manual intervention would be required to
re-enable the device.
The community supporting kernel.org has driven an effort to remove
internal queuing from all LLDDs. The philosophy is that internal
queuing is unnecessary as the block layer already performs the
queuing. Removing the queues from the LLDD makes a more predictable
and more simple LLDD.
As a potential new addition to kernel.org, the 8.x driver was asked to
have all internal queuing removed. Emulex complied with this request.
In explaining the impacts of this change, Emulex has worked with the
community in modifying the behavior of the SCSI midlayer so that SCSI
devices can be temporarily suspended while transport events (such as
those described) can occur.
The proposed patch was posted to the linux-scsi mailing list. The patch
is contained in the 2.6.10-rc2 (and later) patch kits. As such, this
patch is part of the standard 2.6.10 kernel.
By default, the driver expects the patches for block/unblock interfaces
to be present in the kernel. No #define needs to be set to enable support.
Kernel Support
This source package is targeted for the upstream kernel only. (See notes
at the top of this file). It relies on interfaces that are slowing
migrating into the kernel.org kernel.
At this time, the driver requires the 2.6.12 (if pre-release, 2.6.12-rc1)
kernel.
If a driver is needed for older kernels please utilize the 8.0.16
driver sources.
Patches
Thankfully, at this time, patches are not needed.
......@@ -1314,6 +1314,14 @@ config SCSI_QLOGICPTI
source "drivers/scsi/qla2xxx/Kconfig"
config SCSI_LPFC
tristate "Emulex LightPulse Fibre Channel Support"
depends on PCI && SCSI
select SCSI_FC_ATTRS
help
This lpfc driver supports the Emulex LightPulse
Family of Fibre Channel PCI host adapters.
config SCSI_SEAGATE
tristate "Seagate ST-02 and Future Domain TMC-8xx SCSI support"
depends on X86 && ISA && SCSI && BROKEN
......
......@@ -80,6 +80,7 @@ obj-$(CONFIG_SCSI_QLOGIC_ISP) += qlogicisp.o
obj-$(CONFIG_SCSI_QLOGIC_FC) += qlogicfc.o
obj-$(CONFIG_SCSI_QLOGIC_1280) += qla1280.o
obj-$(CONFIG_SCSI_QLA2XXX) += qla2xxx/
obj-$(CONFIG_SCSI_LPFC) += lpfc/
obj-$(CONFIG_SCSI_PAS16) += pas16.o
obj-$(CONFIG_SCSI_SEAGATE) += seagate.o
obj-$(CONFIG_SCSI_FD_8xx) += seagate.o
......
#/*******************************************************************
# * This file is part of the Emulex Linux Device Driver for *
# * Enterprise Fibre Channel Host Bus Adapters. *
# * Refer to the README file included with this package for *
# * driver version and adapter support. *
# * Copyright (C) 2004 Emulex Corporation. *
# * www.emulex.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, a copy of which *
# * can be found in the file COPYING included with this package. *
# *******************************************************************/
######################################################################
#$Id: Makefile 1.58 2005/01/23 19:00:32EST sf_support Exp $
ifneq ($(GCOV),)
EXTRA_CFLAGS += -fprofile-arcs -ftest-coverage
EXTRA_CFLAGS += -O0
endif
obj-$(CONFIG_SCSI_LPFC) := lpfc.o
lpfc-objs := lpfc_mem.o lpfc_sli.o lpfc_ct.o lpfc_els.o lpfc_hbadisc.o \
lpfc_init.o lpfc_mbox.o lpfc_nportdisc.o lpfc_scsi.o lpfc_attr.o
/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Enterprise Fibre Channel Host Bus Adapters. *
* Refer to the README file included with this package for *
* driver version and adapter support. *
* Copyright (C) 2004 Emulex Corporation. *
* www.emulex.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, a copy of which *
* can be found in the file COPYING included with this package. *
*******************************************************************/
/*
* $Id: lpfc.h 1.167 2005/04/07 08:47:05EDT sf_support Exp $
*/
struct lpfc_sli2_slim;
#define LPFC_MAX_TARGET 256 /* max targets supported */
#define LPFC_MAX_DISC_THREADS 64 /* max outstanding discovery els req */
#define LPFC_MAX_NS_RETRY 3 /* max NameServer retries */
#define LPFC_DFT_HBA_Q_DEPTH 2048 /* max cmds per hba */
#define LPFC_LC_HBA_Q_DEPTH 1024 /* max cmds per low cost hba */
#define LPFC_LP101_HBA_Q_DEPTH 128 /* max cmds per low cost hba */
#define LPFC_CMD_PER_LUN 30 /* max outstanding cmds per lun */
#define LPFC_SG_SEG_CNT 64 /* sg element count per scsi cmnd */
#define LPFC_IOCB_LIST_CNT 2250 /* list of IOCBs for fast-path usage. */
/* Define macros for 64 bit support */
#define putPaddrLow(addr) ((uint32_t) (0xffffffff & (u64)(addr)))
#define putPaddrHigh(addr) ((uint32_t) (0xffffffff & (((u64)(addr))>>32)))
#define getPaddr(high, low) ((dma_addr_t)( \
(( (u64)(high)<<16 ) << 16)|( (u64)(low))))
/* Provide maximum configuration definitions. */
#define LPFC_DRVR_TIMEOUT 16 /* driver iocb timeout value in sec */
#define MAX_FCP_TARGET 256 /* max num of FCP targets supported */
#define FC_MAX_ADPTMSG 64
#define MAX_HBAEVT 32
/* Provide DMA memory definitions the driver uses per port instance. */
struct lpfc_dmabuf {
struct list_head list;
void *virt; /* virtual address ptr */
dma_addr_t phys; /* mapped address */
};
struct lpfc_dma_pool {
struct lpfc_dmabuf *elements;
uint32_t max_count;
uint32_t current_count;
};
/* Priority bit. Set value to exceed low water mark in lpfc_mem. */
#define MEM_PRI 0x100
/****************************************************************************/
/* Device VPD save area */
/****************************************************************************/
typedef struct lpfc_vpd {
uint32_t status; /* vpd status value */
uint32_t length; /* number of bytes actually returned */
struct {
uint32_t rsvd1; /* Revision numbers */
uint32_t biuRev;
uint32_t smRev;
uint32_t smFwRev;
uint32_t endecRev;
uint16_t rBit;
uint8_t fcphHigh;
uint8_t fcphLow;
uint8_t feaLevelHigh;
uint8_t feaLevelLow;
uint32_t postKernRev;
uint32_t opFwRev;
uint8_t opFwName[16];
uint32_t sli1FwRev;
uint8_t sli1FwName[16];
uint32_t sli2FwRev;
uint8_t sli2FwName[16];
} rev;
} lpfc_vpd_t;
struct lpfc_scsi_buf;
/*
* lpfc stat counters
*/
struct lpfc_stats {
/* Statistics for ELS commands */
uint32_t elsLogiCol;
uint32_t elsRetryExceeded;
uint32_t elsXmitRetry;
uint32_t elsDelayRetry;
uint32_t elsRcvDrop;
uint32_t elsRcvFrame;
uint32_t elsRcvRSCN;
uint32_t elsRcvRNID;
uint32_t elsRcvFARP;
uint32_t elsRcvFARPR;
uint32_t elsRcvFLOGI;
uint32_t elsRcvPLOGI;
uint32_t elsRcvADISC;
uint32_t elsRcvPDISC;
uint32_t elsRcvFAN;
uint32_t elsRcvLOGO;
uint32_t elsRcvPRLO;
uint32_t elsRcvPRLI;
uint32_t elsRcvRRQ;
uint32_t elsXmitFLOGI;
uint32_t elsXmitPLOGI;
uint32_t elsXmitPRLI;
uint32_t elsXmitADISC;
uint32_t elsXmitLOGO;
uint32_t elsXmitSCR;
uint32_t elsXmitRNID;
uint32_t elsXmitFARP;
uint32_t elsXmitFARPR;
uint32_t elsXmitACC;
uint32_t elsXmitLSRJT;
uint32_t frameRcvBcast;
uint32_t frameRcvMulti;
uint32_t strayXmitCmpl;
uint32_t frameXmitDelay;
uint32_t xriCmdCmpl;
uint32_t xriStatErr;
uint32_t LinkUp;
uint32_t LinkDown;
uint32_t LinkMultiEvent;
uint32_t NoRcvBuf;
uint32_t fcpCmd;
uint32_t fcpCmpl;
uint32_t fcpRspErr;
uint32_t fcpRemoteStop;
uint32_t fcpPortRjt;
uint32_t fcpPortBusy;
uint32_t fcpError;
uint32_t fcpLocalErr;
};
enum sysfs_mbox_state {
SMBOX_IDLE,
SMBOX_WRITING,
SMBOX_READING
};
struct lpfc_sysfs_mbox {
enum sysfs_mbox_state state;
size_t offset;
struct lpfcMboxq * mbox;
};
struct lpfc_hba {
struct list_head hba_list; /* List of hbas/ports */
struct lpfc_sli sli;
struct lpfc_sli2_slim *slim2p;
dma_addr_t slim2p_mapping;
uint16_t pci_cfg_value;
uint32_t hba_state;
#define LPFC_INIT_START 1 /* Initial state after board reset */
#define LPFC_INIT_MBX_CMDS 2 /* Initialize HBA with mbox commands */
#define LPFC_LINK_DOWN 3 /* HBA initialized, link is down */
#define LPFC_LINK_UP 4 /* Link is up - issue READ_LA */
#define LPFC_LOCAL_CFG_LINK 5 /* local NPORT Id configured */
#define LPFC_FLOGI 6 /* FLOGI sent to Fabric */
#define LPFC_FABRIC_CFG_LINK 7 /* Fabric assigned NPORT Id
configured */
#define LPFC_NS_REG 8 /* Register with NameServer */
#define LPFC_NS_QRY 9 /* Query NameServer for NPort ID list */
#define LPFC_BUILD_DISC_LIST 10 /* Build ADISC and PLOGI lists for
* device authentication / discovery */
#define LPFC_DISC_AUTH 11 /* Processing ADISC list */
#define LPFC_CLEAR_LA 12 /* authentication cmplt - issue
CLEAR_LA */
#define LPFC_HBA_READY 32
#define LPFC_HBA_ERROR 0xff
uint8_t fc_linkspeed; /* Link speed after last READ_LA */
uint32_t fc_eventTag; /* event tag for link attention */
uint32_t fc_prli_sent; /* cntr for outstanding PRLIs */
uint32_t num_disc_nodes; /*in addition to hba_state */
struct timer_list fc_estabtmo; /* link establishment timer */
struct timer_list fc_disctmo; /* Discovery rescue timer */
struct timer_list fc_fdmitmo; /* fdmi timer */
/* These fields used to be binfo */
struct lpfc_name fc_nodename; /* fc nodename */
struct lpfc_name fc_portname; /* fc portname */
uint32_t fc_pref_DID; /* preferred D_ID */
uint8_t fc_pref_ALPA; /* preferred AL_PA */
uint32_t fc_edtov; /* E_D_TOV timer value */
uint32_t fc_arbtov; /* ARB_TOV timer value */
uint32_t fc_ratov; /* R_A_TOV timer value */
uint32_t fc_rttov; /* R_T_TOV timer value */
uint32_t fc_altov; /* AL_TOV timer value */
uint32_t fc_crtov; /* C_R_TOV timer value */
uint32_t fc_citov; /* C_I_TOV timer value */
uint32_t fc_myDID; /* fibre channel S_ID */
uint32_t fc_prevDID; /* previous fibre channel S_ID */
struct serv_parm fc_sparam; /* buffer for our service parameters */
struct serv_parm fc_fabparam; /* fabric service parameters buffer */
uint8_t alpa_map[128]; /* AL_PA map from READ_LA */
uint8_t fc_ns_retry; /* retries for fabric nameserver */
uint32_t fc_nlp_cnt; /* outstanding NODELIST requests */
uint32_t fc_rscn_id_cnt; /* count of RSCNs payloads in list */
struct lpfc_dmabuf *fc_rscn_id_list[FC_MAX_HOLD_RSCN];
uint32_t lmt;
uint32_t fc_flag; /* FC flags */
#define FC_PT2PT 0x1 /* pt2pt with no fabric */
#define FC_PT2PT_PLOGI 0x2 /* pt2pt initiate PLOGI */
#define FC_DISC_TMO 0x4 /* Discovery timer running */
#define FC_PUBLIC_LOOP 0x8 /* Public loop */
#define FC_LBIT 0x10 /* LOGIN bit in loopinit set */
#define FC_RSCN_MODE 0x20 /* RSCN cmd rcv'ed */
#define FC_NLP_MORE 0x40 /* More node to process in node tbl */
#define FC_OFFLINE_MODE 0x80 /* Interface is offline for diag */
#define FC_FABRIC 0x100 /* We are fabric attached */
#define FC_ESTABLISH_LINK 0x200 /* Reestablish Link */
#define FC_RSCN_DISCOVERY 0x400 /* Authenticate all devices after RSCN*/
#define FC_LOADING 0x1000 /* HBA in process of loading drvr */
#define FC_UNLOADING 0x2000 /* HBA in process of unloading drvr */
#define FC_SCSI_SCAN_TMO 0x4000 /* scsi scan timer running */
#define FC_ABORT_DISCOVERY 0x8000 /* we want to abort discovery */
#define FC_NDISC_ACTIVE 0x10000 /* NPort discovery active */
uint32_t fc_topology; /* link topology, from LINK INIT */
struct lpfc_stats fc_stat;
/* These are the head/tail pointers for the bind, plogi, adisc, unmap,
* and map lists. Their counters are immediately following.
*/
struct list_head fc_plogi_list;
struct list_head fc_adisc_list;
struct list_head fc_reglogin_list;
struct list_head fc_prli_list;
struct list_head fc_nlpunmap_list;
struct list_head fc_nlpmap_list;
struct list_head fc_npr_list;
struct list_head fc_unused_list;
/* Keep counters for the number of entries in each list. */
uint16_t fc_plogi_cnt;
uint16_t fc_adisc_cnt;
uint16_t fc_reglogin_cnt;
uint16_t fc_prli_cnt;
uint16_t fc_unmap_cnt;
uint16_t fc_map_cnt;
uint16_t fc_npr_cnt;
uint16_t fc_unused_cnt;
struct lpfc_nodelist fc_fcpnodev; /* nodelist entry for no device */
uint32_t nport_event_cnt; /* timestamp for nlplist entry */
#define LPFC_RPI_HASH_SIZE 64
#define LPFC_RPI_HASH_FUNC(x) ((x) & (0x3f))
/* ptr to active D_ID / RPIs */
struct lpfc_nodelist *fc_nlplookup[LPFC_RPI_HASH_SIZE];
uint32_t wwnn[2];
uint32_t RandomData[7];
uint32_t cfg_log_verbose;
uint32_t cfg_lun_queue_depth;
uint32_t cfg_nodev_tmo;
uint32_t cfg_hba_queue_depth;
uint32_t cfg_fcp_class;
uint32_t cfg_use_adisc;
uint32_t cfg_ack0;
uint32_t cfg_topology;
uint32_t cfg_scan_down;
uint32_t cfg_link_speed;
uint32_t cfg_cr_delay;
uint32_t cfg_cr_count;
uint32_t cfg_fdmi_on;
uint32_t cfg_fcp_bind_method;
uint32_t cfg_discovery_threads;
uint32_t cfg_max_luns;
uint32_t cfg_sg_seg_cnt;
uint32_t cfg_sg_dma_buf_size;
lpfc_vpd_t vpd; /* vital product data */
struct Scsi_Host *host;
struct pci_dev *pcidev;
struct list_head work_list;
uint32_t work_ha; /* Host Attention Bits for WT */
uint32_t work_ha_mask; /* HA Bits owned by WT */
uint32_t work_hs; /* HS stored in case of ERRAT */
uint32_t work_status[2]; /* Extra status from SLIM */
uint32_t work_hba_events; /* Timeout to be handled */
#define WORKER_DISC_TMO 0x1 /* Discovery timeout */
#define WORKER_ELS_TMO 0x2 /* ELS timeout */
#define WORKER_MBOX_TMO 0x4 /* MBOX timeout */
#define WORKER_FDMI_TMO 0x8 /* FDMI timeout */
wait_queue_head_t *work_wait;
struct task_struct *worker_thread;
unsigned long pci_bar0_map; /* Physical address for PCI BAR0 */
unsigned long pci_bar2_map; /* Physical address for PCI BAR2 */
void __iomem *slim_memmap_p; /* Kernel memory mapped address for
PCI BAR0 */
void __iomem *ctrl_regs_memmap_p;/* Kernel memory mapped address for
PCI BAR2 */
void __iomem *MBslimaddr; /* virtual address for mbox cmds */
void __iomem *HAregaddr; /* virtual address for host attn reg */
void __iomem *CAregaddr; /* virtual address for chip attn reg */
void __iomem *HSregaddr; /* virtual address for host status
reg */
void __iomem *HCregaddr; /* virtual address for host ctl reg */
int brd_no; /* FC board number */
char SerialNumber[32]; /* adapter Serial Number */
char OptionROMVersion[32]; /* adapter BIOS / Fcode version */
char ModelDesc[256]; /* Model Description */
char ModelName[80]; /* Model Name */
char ProgramType[256]; /* Program Type */
char Port[20]; /* Port No */
uint8_t vpd_flag; /* VPD data flag */
#define VPD_MODEL_DESC 0x1 /* valid vpd model description */
#define VPD_MODEL_NAME 0x2 /* valid vpd model name */
#define VPD_PROGRAM_TYPE 0x4 /* valid vpd program type */
#define VPD_PORT 0x8 /* valid vpd port data */
#define VPD_MASK 0xf /* mask for any vpd data */
struct timer_list els_tmofunc;
void *link_stats;
/*
* stat counters
*/
uint64_t fc4InputRequests;
uint64_t fc4OutputRequests;
uint64_t fc4ControlRequests;
struct lpfc_sysfs_mbox sysfs_mbox;
/* fastpath list. */
struct list_head lpfc_scsi_buf_list;
uint32_t total_scsi_bufs;
struct list_head lpfc_iocb_list;
uint32_t total_iocbq_bufs;
/* pci_mem_pools */
struct pci_pool *lpfc_scsi_dma_buf_pool;
struct pci_pool *lpfc_mbuf_pool;
struct lpfc_dma_pool lpfc_mbuf_safety_pool;
mempool_t *mbox_mem_pool;
mempool_t *nlp_mem_pool;
struct list_head freebufList;
struct list_head ctrspbuflist;
struct list_head rnidrspbuflist;
};
struct rnidrsp {
void *buf;
uint32_t uniqueid;
struct list_head list;
uint32_t data;
};
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/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Enterprise Fibre Channel Host Bus Adapters. *
* Refer to the README file included with this package for *
* driver version and adapter support. *
* Copyright (C) 2004 Emulex Corporation. *
* www.emulex.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, a copy of which *
* can be found in the file COPYING included with this package. *
*******************************************************************/
/*
* $Id: lpfc_compat.h 1.32 2005/01/25 17:51:45EST sf_support Exp $
*
* This file provides macros to aid compilation in the Linux 2.4 kernel
* over various platform architectures.
*/
/*******************************************************************
Note: HBA's SLI memory contains little-endian LW.
Thus to access it from a little-endian host,
memcpy_toio() and memcpy_fromio() can be used.
However on a big-endian host, copy 4 bytes at a time,
using writel() and readl().
*******************************************************************/
#if __BIG_ENDIAN
static inline void
lpfc_memcpy_to_slim(void __iomem *dest, void *src, unsigned int bytes)
{
uint32_t __iomem *dest32;
uint32_t *src32;
unsigned int four_bytes;
dest32 = (uint32_t __iomem *) dest;
src32 = (uint32_t *) src;
/* write input bytes, 4 bytes at a time */
for (four_bytes = bytes /4; four_bytes > 0; four_bytes--) {
writel( *src32, dest32);
readl(dest32); /* flush */
dest32++;
src32++;
}
return;
}
static inline void
lpfc_memcpy_from_slim( void *dest, void __iomem *src, unsigned int bytes)
{
uint32_t *dest32;
uint32_t __iomem *src32;
unsigned int four_bytes;
dest32 = (uint32_t *) dest;
src32 = (uint32_t __iomem *) src;
/* read input bytes, 4 bytes at a time */
for (four_bytes = bytes /4; four_bytes > 0; four_bytes--) {
*dest32 = readl( src32);
dest32++;
src32++;
}
return;
}
#else
static inline void
lpfc_memcpy_to_slim( void __iomem *dest, void *src, unsigned int bytes)
{
/* actually returns 1 byte past dest */
memcpy_toio( dest, src, bytes);
}
static inline void
lpfc_memcpy_from_slim( void *dest, void __iomem *src, unsigned int bytes)
{
/* actually returns 1 byte past dest */
memcpy_fromio( dest, src, bytes);
}
#endif /* __BIG_ENDIAN */
/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Enterprise Fibre Channel Host Bus Adapters. *
* Refer to the README file included with this package for *
* driver version and adapter support. *