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07da60c1f4
linux-next/drivers/scsi/lpfc/lpfc_init.c
Anton Blanchard 07da60c1f4 [SCSI] lpfc: fix oops when parsing dodgy VPD 
We have seen two cases where VPD on an emulex card has been incorrect
and we end up walking off the end of memory. It looks like someone made
an update (increased the length of a string) without increasing the
Length field. Then we do:

	Length -= (3+i);

And since Length is unsigned it becomes very large and we loop forever
in the encapsulating:

	while (Length > 0) {

If we make Length signed then we fall out of the loop and proceed on.

Its important to note we have only seen this in the lab and it may be
the only two cases of this in existence, but since the rest of the code
has been written to be resilient against bad VPD we may as well fix this
too.

Signed-off-by: Anton Blanchard <anton@samba.org>
Acked-by: James Smart <James.Smart@Emulex.Com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-04-01 10:02:00 -05:00

1996 lines
57 KiB
C
Raw Blame History

/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
* Copyright (C) 2004-2006 Emulex. All rights reserved. *
* EMULEX and SLI are trademarks of Emulex. *
* www.emulex.com *
* Portions Copyright (C) 2004-2005 Christoph Hellwig *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of version 2 of the GNU General *
* Public License as published by the Free Software Foundation. *
* This program is distributed in the hope that it will be useful. *
* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
* WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
* DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
* TO BE LEGALLY INVALID. See the GNU General Public License for *
* more details, a copy of which can be found in the file COPYING *
* included with this package. *
*******************************************************************/
#include <linux/blkdev.h>
#include <linux/delay.h>
#include <linux/dma-mapping.h>
#include <linux/idr.h>
#include <linux/interrupt.h>
#include <linux/kthread.h>
#include <linux/pci.h>
#include <linux/spinlock.h>
#include <scsi/scsi.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_transport_fc.h>
#include "lpfc_hw.h"
#include "lpfc_sli.h"
#include "lpfc_disc.h"
#include "lpfc_scsi.h"
#include "lpfc.h"
#include "lpfc_logmsg.h"
#include "lpfc_crtn.h"
#include "lpfc_version.h"
static int lpfc_parse_vpd(struct lpfc_hba *, uint8_t *, int);
static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
static int lpfc_post_rcv_buf(struct lpfc_hba *);
static struct scsi_transport_template *lpfc_transport_template = NULL;
static DEFINE_IDR(lpfc_hba_index);
/************************************************************************/
/* */
/* lpfc_config_port_prep */
/* This routine will do LPFC initialization prior to the */
/* CONFIG_PORT mailbox command. This will be initialized */
/* as a SLI layer callback routine. */
/* This routine returns 0 on success or -ERESTART if it wants */
/* the SLI layer to reset the HBA and try again. Any */
/* other return value indicates an error. */
/* */
/************************************************************************/
int
lpfc_config_port_prep(struct lpfc_hba * phba)
{
lpfc_vpd_t *vp = &phba->vpd;
int i = 0, rc;
LPFC_MBOXQ_t *pmb;
MAILBOX_t *mb;
char *lpfc_vpd_data = NULL;
uint16_t offset = 0;
static char licensed[56] =
"key unlock for use with gnu public licensed code only\0";
static int init_key = 1;
pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!pmb) {
phba->hba_state = LPFC_HBA_ERROR;
return -ENOMEM;
}
mb = &pmb->mb;
phba->hba_state = LPFC_INIT_MBX_CMDS;
if (lpfc_is_LC_HBA(phba->pcidev->device)) {
if (init_key) {
uint32_t *ptext = (uint32_t *) licensed;
for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
*ptext = cpu_to_be32(*ptext);
init_key = 0;
}
lpfc_read_nv(phba, pmb);
memset((char*)mb->un.varRDnvp.rsvd3, 0,
sizeof (mb->un.varRDnvp.rsvd3));
memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
sizeof (licensed));
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
if (rc != MBX_SUCCESS) {
lpfc_printf_log(phba,
KERN_ERR,
LOG_MBOX,
"%d:0324 Config Port initialization "
"error, mbxCmd x%x READ_NVPARM, "
"mbxStatus x%x\n",
phba->brd_no,
mb->mbxCommand, mb->mbxStatus);
mempool_free(pmb, phba->mbox_mem_pool);
return -ERESTART;
}
memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
sizeof (mb->un.varRDnvp.nodename));
}
/* Setup and issue mailbox READ REV command */
lpfc_read_rev(phba, pmb);
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
if (rc != MBX_SUCCESS) {
lpfc_printf_log(phba,
KERN_ERR,
LOG_INIT,
"%d:0439 Adapter failed to init, mbxCmd x%x "
"READ_REV, mbxStatus x%x\n",
phba->brd_no,
mb->mbxCommand, mb->mbxStatus);
mempool_free( pmb, phba->mbox_mem_pool);
return -ERESTART;
}
/*
* The value of rr must be 1 since the driver set the cv field to 1.
* This setting requires the FW to set all revision fields.
*/
if (mb->un.varRdRev.rr == 0) {
vp->rev.rBit = 0;
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"%d:0440 Adapter failed to init, READ_REV has "
"missing revision information.\n",
phba->brd_no);
mempool_free(pmb, phba->mbox_mem_pool);
return -ERESTART;
}
/* Save information as VPD data */
vp->rev.rBit = 1;
vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
vp->rev.biuRev = mb->un.varRdRev.biuRev;
vp->rev.smRev = mb->un.varRdRev.smRev;
vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
vp->rev.endecRev = mb->un.varRdRev.endecRev;
vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
if (lpfc_is_LC_HBA(phba->pcidev->device))
memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
sizeof (phba->RandomData));
/* Get adapter VPD information */
pmb->context2 = kmalloc(DMP_RSP_SIZE, GFP_KERNEL);
if (!pmb->context2)
goto out_free_mbox;
lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
if (!lpfc_vpd_data)
goto out_free_context2;
do {
lpfc_dump_mem(phba, pmb, offset);
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
if (rc != MBX_SUCCESS) {
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"%d:0441 VPD not present on adapter, "
"mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
phba->brd_no,
mb->mbxCommand, mb->mbxStatus);
mb->un.varDmp.word_cnt = 0;
}
if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
lpfc_sli_pcimem_bcopy(pmb->context2, lpfc_vpd_data + offset,
mb->un.varDmp.word_cnt);
offset += mb->un.varDmp.word_cnt;
} while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
kfree(lpfc_vpd_data);
out_free_context2:
kfree(pmb->context2);
out_free_mbox:
mempool_free(pmb, phba->mbox_mem_pool);
return 0;
}
/************************************************************************/
/* */
/* lpfc_config_port_post */
/* This routine will do LPFC initialization after the */
/* CONFIG_PORT mailbox command. This will be initialized */
/* as a SLI layer callback routine. */
/* This routine returns 0 on success. Any other return value */
/* indicates an error. */
/* */
/************************************************************************/
int
lpfc_config_port_post(struct lpfc_hba * phba)
{
LPFC_MBOXQ_t *pmb;
MAILBOX_t *mb;
struct lpfc_dmabuf *mp;
struct lpfc_sli *psli = &phba->sli;
uint32_t status, timeout;
int i, j, rc;
pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!pmb) {
phba->hba_state = LPFC_HBA_ERROR;
return -ENOMEM;
}
mb = &pmb->mb;
lpfc_config_link(phba, pmb);
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
if (rc != MBX_SUCCESS) {
lpfc_printf_log(phba,
KERN_ERR,
LOG_INIT,
"%d:0447 Adapter failed init, mbxCmd x%x "
"CONFIG_LINK mbxStatus x%x\n",
phba->brd_no,
mb->mbxCommand, mb->mbxStatus);
phba->hba_state = LPFC_HBA_ERROR;
mempool_free( pmb, phba->mbox_mem_pool);
return -EIO;
}
/* Get login parameters for NID. */
lpfc_read_sparam(phba, pmb);
if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
lpfc_printf_log(phba,
KERN_ERR,
LOG_INIT,
"%d:0448 Adapter failed init, mbxCmd x%x "
"READ_SPARM mbxStatus x%x\n",
phba->brd_no,
mb->mbxCommand, mb->mbxStatus);
phba->hba_state = LPFC_HBA_ERROR;
mp = (struct lpfc_dmabuf *) pmb->context1;
mempool_free( pmb, phba->mbox_mem_pool);
lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
return -EIO;
}
mp = (struct lpfc_dmabuf *) pmb->context1;
memcpy(&phba->fc_sparam, mp->virt, sizeof (struct serv_parm));
lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
pmb->context1 = NULL;
if (phba->cfg_soft_wwnn)
u64_to_wwn(phba->cfg_soft_wwnn, phba->fc_sparam.nodeName.u.wwn);
if (phba->cfg_soft_wwpn)
u64_to_wwn(phba->cfg_soft_wwpn, phba->fc_sparam.portName.u.wwn);
memcpy(&phba->fc_nodename, &phba->fc_sparam.nodeName,
sizeof (struct lpfc_name));
memcpy(&phba->fc_portname, &phba->fc_sparam.portName,
sizeof (struct lpfc_name));
/* If no serial number in VPD data, use low 6 bytes of WWNN */
/* This should be consolidated into parse_vpd ? - mr */
if (phba->SerialNumber[0] == 0) {
uint8_t *outptr;
outptr = &phba->fc_nodename.u.s.IEEE[0];
for (i = 0; i < 12; i++) {
status = *outptr++;
j = ((status & 0xf0) >> 4);
if (j <= 9)
phba->SerialNumber[i] =
(char)((uint8_t) 0x30 + (uint8_t) j);
else
phba->SerialNumber[i] =
(char)((uint8_t) 0x61 + (uint8_t) (j - 10));
i++;
j = (status & 0xf);
if (j <= 9)
phba->SerialNumber[i] =
(char)((uint8_t) 0x30 + (uint8_t) j);
else
phba->SerialNumber[i] =
(char)((uint8_t) 0x61 + (uint8_t) (j - 10));
}
}
lpfc_read_config(phba, pmb);
if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
lpfc_printf_log(phba,
KERN_ERR,
LOG_INIT,
"%d:0453 Adapter failed to init, mbxCmd x%x "
"READ_CONFIG, mbxStatus x%x\n",
phba->brd_no,
mb->mbxCommand, mb->mbxStatus);
phba->hba_state = LPFC_HBA_ERROR;
mempool_free( pmb, phba->mbox_mem_pool);
return -EIO;
}
/* Reset the DFT_HBA_Q_DEPTH to the max xri */
if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1))
phba->cfg_hba_queue_depth =
mb->un.varRdConfig.max_xri + 1;
phba->lmt = mb->un.varRdConfig.lmt;
/* Get the default values for Model Name and Description */
lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
if ((phba->cfg_link_speed > LINK_SPEED_10G)
|| ((phba->cfg_link_speed == LINK_SPEED_1G)
&& !(phba->lmt & LMT_1Gb))
|| ((phba->cfg_link_speed == LINK_SPEED_2G)
&& !(phba->lmt & LMT_2Gb))
|| ((phba->cfg_link_speed == LINK_SPEED_4G)
&& !(phba->lmt & LMT_4Gb))
|| ((phba->cfg_link_speed == LINK_SPEED_8G)
&& !(phba->lmt & LMT_8Gb))
|| ((phba->cfg_link_speed == LINK_SPEED_10G)
&& !(phba->lmt & LMT_10Gb))) {
/* Reset link speed to auto */
lpfc_printf_log(phba,
KERN_WARNING,
LOG_LINK_EVENT,
"%d:1302 Invalid speed for this board: "
"Reset link speed to auto: x%x\n",
phba->brd_no,
phba->cfg_link_speed);
phba->cfg_link_speed = LINK_SPEED_AUTO;
}
phba->hba_state = LPFC_LINK_DOWN;
/* Only process IOCBs on ring 0 till hba_state is READY */
if (psli->ring[psli->extra_ring].cmdringaddr)
psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
if (psli->ring[psli->fcp_ring].cmdringaddr)
psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
if (psli->ring[psli->next_ring].cmdringaddr)
psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
/* Post receive buffers for desired rings */
lpfc_post_rcv_buf(phba);
/* Enable appropriate host interrupts */
spin_lock_irq(phba->host->host_lock);
status = readl(phba->HCregaddr);
status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
if (psli->num_rings > 0)
status |= HC_R0INT_ENA;
if (psli->num_rings > 1)
status |= HC_R1INT_ENA;
if (psli->num_rings > 2)
status |= HC_R2INT_ENA;
if (psli->num_rings > 3)
status |= HC_R3INT_ENA;
if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
(phba->cfg_poll & DISABLE_FCP_RING_INT))
status &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
writel(status, phba->HCregaddr);
readl(phba->HCregaddr); /* flush */
spin_unlock_irq(phba->host->host_lock);
/*
* Setup the ring 0 (els) timeout handler
*/
timeout = phba->fc_ratov << 1;
phba->els_tmofunc.expires = jiffies + HZ * timeout;
add_timer(&phba->els_tmofunc);
lpfc_init_link(phba, pmb, phba->cfg_topology, phba->cfg_link_speed);
pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
if (rc != MBX_SUCCESS) {
lpfc_printf_log(phba,
KERN_ERR,
LOG_INIT,
"%d:0454 Adapter failed to init, mbxCmd x%x "
"INIT_LINK, mbxStatus x%x\n",
phba->brd_no,
mb->mbxCommand, mb->mbxStatus);
/* Clear all interrupt enable conditions */
writel(0, phba->HCregaddr);
readl(phba->HCregaddr); /* flush */
/* Clear all pending interrupts */
writel(0xffffffff, phba->HAregaddr);
readl(phba->HAregaddr); /* flush */
phba->hba_state = LPFC_HBA_ERROR;
if (rc != MBX_BUSY)
mempool_free(pmb, phba->mbox_mem_pool);
return -EIO;
}
/* MBOX buffer will be freed in mbox compl */
return (0);
}
static int
lpfc_discovery_wait(struct lpfc_hba *phba)
{
int i = 0;
while ((phba->hba_state != LPFC_HBA_READY) ||
(phba->num_disc_nodes) || (phba->fc_prli_sent) ||
((phba->fc_map_cnt == 0) && (i<2)) ||
(phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE)) {
/* Check every second for 30 retries. */
i++;
if (i > 30) {
return -ETIMEDOUT;
}
if ((i >= 15) && (phba->hba_state <= LPFC_LINK_DOWN)) {
/* The link is down. Set linkdown timeout */
return -ETIMEDOUT;
}
/* Delay for 1 second to give discovery time to complete. */
msleep(1000);
}
return 0;
}
/************************************************************************/
/* */
/* lpfc_hba_down_prep */
/* This routine will do LPFC uninitialization before the */
/* HBA is reset when bringing down the SLI Layer. This will be */
/* initialized as a SLI layer callback routine. */
/* This routine returns 0 on success. Any other return value */
/* indicates an error. */
/* */
/************************************************************************/
int
lpfc_hba_down_prep(struct lpfc_hba * phba)
{
/* Disable interrupts */
writel(0, phba->HCregaddr);
readl(phba->HCregaddr); /* flush */
/* Cleanup potential discovery resources */
lpfc_els_flush_rscn(phba);
lpfc_els_flush_cmd(phba);
lpfc_disc_flush_list(phba);
return (0);
}
/************************************************************************/
/* */
/* lpfc_hba_down_post */
/* This routine will do uninitialization after the HBA is reset */
/* when bringing down the SLI Layer. */
/* This routine returns 0 on success. Any other return value */
/* indicates an error. */
/* */
/************************************************************************/
int
lpfc_hba_down_post(struct lpfc_hba * phba)
{
struct lpfc_sli *psli = &phba->sli;
struct lpfc_sli_ring *pring;
struct lpfc_dmabuf *mp, *next_mp;
int i;
/* Cleanup preposted buffers on the ELS ring */
pring = &psli->ring[LPFC_ELS_RING];
list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
list_del(&mp->list);
pring->postbufq_cnt--;
lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
}
for (i = 0; i < psli->num_rings; i++) {
pring = &psli->ring[i];
lpfc_sli_abort_iocb_ring(phba, pring);
}
return 0;
}
/************************************************************************/
/* */
/* lpfc_handle_eratt */
/* This routine will handle processing a Host Attention */
/* Error Status event. This will be initialized */
/* as a SLI layer callback routine. */
/* */
/************************************************************************/
void
lpfc_handle_eratt(struct lpfc_hba * phba)
{
struct lpfc_sli *psli = &phba->sli;
struct lpfc_sli_ring *pring;
uint32_t event_data;
/* If the pci channel is offline, ignore possible errors,
* since we cannot communicate with the pci card anyway. */
if (pci_channel_offline(phba->pcidev))
return;
if (phba->work_hs & HS_FFER6 ||
phba->work_hs & HS_FFER5) {
/* Re-establishing Link */
lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
"%d:1301 Re-establishing Link "
"Data: x%x x%x x%x\n",
phba->brd_no, phba->work_hs,
phba->work_status[0], phba->work_status[1]);
spin_lock_irq(phba->host->host_lock);
phba->fc_flag |= FC_ESTABLISH_LINK;
psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
spin_unlock_irq(phba->host->host_lock);
/*
* Firmware stops when it triggled erratt with HS_FFER6.
* That could cause the I/Os dropped by the firmware.
* Error iocb (I/O) on txcmplq and let the SCSI layer
* retry it after re-establishing link.
*/
pring = &psli->ring[psli->fcp_ring];
lpfc_sli_abort_iocb_ring(phba, pring);
/*
* There was a firmware error. Take the hba offline and then
* attempt to restart it.
*/
lpfc_offline(phba);
lpfc_sli_brdrestart(phba);
if (lpfc_online(phba) == 0) { /* Initialize the HBA */
mod_timer(&phba->fc_estabtmo, jiffies + HZ * 60);
return;
}
} else {
/* The if clause above forces this code path when the status
* failure is a value other than FFER6. Do not call the offline
* twice. This is the adapter hardware error path.
*/
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"%d:0457 Adapter Hardware Error "
"Data: x%x x%x x%x\n",
phba->brd_no, phba->work_hs,
phba->work_status[0], phba->work_status[1]);
event_data = FC_REG_DUMP_EVENT;
fc_host_post_vendor_event(phba->host, fc_get_event_number(),
sizeof(event_data), (char *) &event_data,
SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
lpfc_offline(phba);
phba->hba_state = LPFC_HBA_ERROR;
lpfc_hba_down_post(phba);
}
}
/************************************************************************/
/* */
/* lpfc_handle_latt */
/* This routine will handle processing a Host Attention */
/* Link Status event. This will be initialized */
/* as a SLI layer callback routine. */
/* */
/************************************************************************/
void
lpfc_handle_latt(struct lpfc_hba * phba)
{
struct lpfc_sli *psli = &phba->sli;
LPFC_MBOXQ_t *pmb;
volatile uint32_t control;
struct lpfc_dmabuf *mp;
int rc = -ENOMEM;
pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!pmb)
goto lpfc_handle_latt_err_exit;
mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
if (!mp)
goto lpfc_handle_latt_free_pmb;
mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
if (!mp->virt)
goto lpfc_handle_latt_free_mp;
rc = -EIO;
/* Cleanup any outstanding ELS commands */
lpfc_els_flush_cmd(phba);
psli->slistat.link_event++;
lpfc_read_la(phba, pmb, mp);
pmb->mbox_cmpl = lpfc_mbx_cmpl_read_la;
rc = lpfc_sli_issue_mbox (phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB));
if (rc == MBX_NOT_FINISHED)
goto lpfc_handle_latt_free_mbuf;
/* Clear Link Attention in HA REG */
spin_lock_irq(phba->host->host_lock);
writel(HA_LATT, phba->HAregaddr);
readl(phba->HAregaddr); /* flush */
spin_unlock_irq(phba->host->host_lock);
return;
lpfc_handle_latt_free_mbuf:
lpfc_mbuf_free(phba, mp->virt, mp->phys);
lpfc_handle_latt_free_mp:
kfree(mp);
lpfc_handle_latt_free_pmb:
kfree(pmb);
lpfc_handle_latt_err_exit:
/* Enable Link attention interrupts */
spin_lock_irq(phba->host->host_lock);
psli->sli_flag |= LPFC_PROCESS_LA;
control = readl(phba->HCregaddr);
control |= HC_LAINT_ENA;
writel(control, phba->HCregaddr);
readl(phba->HCregaddr); /* flush */
/* Clear Link Attention in HA REG */
writel(HA_LATT, phba->HAregaddr);
readl(phba->HAregaddr); /* flush */
spin_unlock_irq(phba->host->host_lock);
lpfc_linkdown(phba);
phba->hba_state = LPFC_HBA_ERROR;
/* The other case is an error from issue_mbox */
if (rc == -ENOMEM)
lpfc_printf_log(phba,
KERN_WARNING,
LOG_MBOX,
"%d:0300 READ_LA: no buffers\n",
phba->brd_no);
return;
}
/************************************************************************/
/* */
/* lpfc_parse_vpd */
/* This routine will parse the VPD data */
/* */
/************************************************************************/
static int
lpfc_parse_vpd(struct lpfc_hba * phba, uint8_t * vpd, int len)
{
uint8_t lenlo, lenhi;
int Length;
int i, j;
int finished = 0;
int index = 0;
if (!vpd)
return 0;
/* Vital Product */
lpfc_printf_log(phba,
KERN_INFO,
LOG_INIT,
"%d:0455 Vital Product Data: x%x x%x x%x x%x\n",
phba->brd_no,
(uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
(uint32_t) vpd[3]);
while (!finished && (index < (len - 4))) {
switch (vpd[index]) {
case 0x82:
case 0x91:
index += 1;
lenlo = vpd[index];
index += 1;
lenhi = vpd[index];
index += 1;
i = ((((unsigned short)lenhi) << 8) + lenlo);
index += i;
break;
case 0x90:
index += 1;
lenlo = vpd[index];
index += 1;
lenhi = vpd[index];
index += 1;
Length = ((((unsigned short)lenhi) << 8) + lenlo);
if (Length > len - index)
Length = len - index;
while (Length > 0) {
/* Look for Serial Number */
if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
index += 2;
i = vpd[index];
index += 1;
j = 0;
Length -= (3+i);
while(i--) {
phba->SerialNumber[j++] = vpd[index++];
if (j == 31)
break;
}
phba->SerialNumber[j] = 0;
continue;
}
else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
phba->vpd_flag |= VPD_MODEL_DESC;
index += 2;
i = vpd[index];
index += 1;
j = 0;
Length -= (3+i);
while(i--) {
phba->ModelDesc[j++] = vpd[index++];
if (j == 255)
break;
}
phba->ModelDesc[j] = 0;
continue;
}
else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
phba->vpd_flag |= VPD_MODEL_NAME;
index += 2;
i = vpd[index];
index += 1;
j = 0;
Length -= (3+i);
while(i--) {
phba->ModelName[j++] = vpd[index++];
if (j == 79)
break;
}
phba->ModelName[j] = 0;
continue;
}
else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
phba->vpd_flag |= VPD_PROGRAM_TYPE;
index += 2;
i = vpd[index];
index += 1;
j = 0;
Length -= (3+i);
while(i--) {
phba->ProgramType[j++] = vpd[index++];
if (j == 255)
break;
}
phba->ProgramType[j] = 0;
continue;
}
else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
phba->vpd_flag |= VPD_PORT;
index += 2;
i = vpd[index];
index += 1;
j = 0;
Length -= (3+i);
while(i--) {
phba->Port[j++] = vpd[index++];
if (j == 19)
break;
}
phba->Port[j] = 0;
continue;
}
else {
index += 2;
i = vpd[index];
index += 1;
index += i;
Length -= (3 + i);
}
}
finished = 0;
break;
case 0x78:
finished = 1;
break;
default:
index ++;
break;
}
}
return(1);
}
static void
lpfc_get_hba_model_desc(struct lpfc_hba * phba, uint8_t * mdp, uint8_t * descp)
{
lpfc_vpd_t *vp;
uint16_t dev_id = phba->pcidev->device;
int max_speed;
struct {
char * name;
int max_speed;
char * bus;
} m = {"<Unknown>", 0, ""};
if (mdp && mdp[0] != '\0'
&& descp && descp[0] != '\0')
return;
if (phba->lmt & LMT_10Gb)
max_speed = 10;
else if (phba->lmt & LMT_8Gb)
max_speed = 8;
else if (phba->lmt & LMT_4Gb)
max_speed = 4;
else if (phba->lmt & LMT_2Gb)
max_speed = 2;
else
max_speed = 1;
vp = &phba->vpd;
switch (dev_id) {
case PCI_DEVICE_ID_FIREFLY:
m = (typeof(m)){"LP6000", max_speed, "PCI"};
break;
case PCI_DEVICE_ID_SUPERFLY:
if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
m = (typeof(m)){"LP7000", max_speed, "PCI"};
else
m = (typeof(m)){"LP7000E", max_speed, "PCI"};
break;
case PCI_DEVICE_ID_DRAGONFLY:
m = (typeof(m)){"LP8000", max_speed, "PCI"};
break;
case PCI_DEVICE_ID_CENTAUR:
if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
m = (typeof(m)){"LP9002", max_speed, "PCI"};
else
m = (typeof(m)){"LP9000", max_speed, "PCI"};
break;
case PCI_DEVICE_ID_RFLY:
m = (typeof(m)){"LP952", max_speed, "PCI"};
break;
case PCI_DEVICE_ID_PEGASUS:
m = (typeof(m)){"LP9802", max_speed, "PCI-X"};
break;
case PCI_DEVICE_ID_THOR:
m = (typeof(m)){"LP10000", max_speed, "PCI-X"};
break;
case PCI_DEVICE_ID_VIPER:
m = (typeof(m)){"LPX1000", max_speed, "PCI-X"};
break;
case PCI_DEVICE_ID_PFLY:
m = (typeof(m)){"LP982", max_speed, "PCI-X"};
break;
case PCI_DEVICE_ID_TFLY:
m = (typeof(m)){"LP1050", max_speed, "PCI-X"};
break;
case PCI_DEVICE_ID_HELIOS:
m = (typeof(m)){"LP11000", max_speed, "PCI-X2"};
break;
case PCI_DEVICE_ID_HELIOS_SCSP:
m = (typeof(m)){"LP11000-SP", max_speed, "PCI-X2"};
break;
case PCI_DEVICE_ID_HELIOS_DCSP:
m = (typeof(m)){"LP11002-SP", max_speed, "PCI-X2"};
break;
case PCI_DEVICE_ID_NEPTUNE:
m = (typeof(m)){"LPe1000", max_speed, "PCIe"};
break;
case PCI_DEVICE_ID_NEPTUNE_SCSP:
m = (typeof(m)){"LPe1000-SP", max_speed, "PCIe"};
break;
case PCI_DEVICE_ID_NEPTUNE_DCSP:
m = (typeof(m)){"LPe1002-SP", max_speed, "PCIe"};
break;
case PCI_DEVICE_ID_BMID:
m = (typeof(m)){"LP1150", max_speed, "PCI-X2"};
break;
case PCI_DEVICE_ID_BSMB:
m = (typeof(m)){"LP111", max_speed, "PCI-X2"};
break;
case PCI_DEVICE_ID_ZEPHYR:
m = (typeof(m)){"LPe11000", max_speed, "PCIe"};
break;
case PCI_DEVICE_ID_ZEPHYR_SCSP:
m = (typeof(m)){"LPe11000", max_speed, "PCIe"};
break;
case PCI_DEVICE_ID_ZEPHYR_DCSP:
m = (typeof(m)){"LPe11002-SP", max_speed, "PCIe"};
break;
case PCI_DEVICE_ID_ZMID:
m = (typeof(m)){"LPe1150", max_speed, "PCIe"};
break;
case PCI_DEVICE_ID_ZSMB:
m = (typeof(m)){"LPe111", max_speed, "PCIe"};
break;
case PCI_DEVICE_ID_LP101:
m = (typeof(m)){"LP101", max_speed, "PCI-X"};
break;
case PCI_DEVICE_ID_LP10000S:
m = (typeof(m)){"LP10000-S", max_speed, "PCI"};
break;
case PCI_DEVICE_ID_LP11000S:
m = (typeof(m)){"LP11000-S", max_speed,
"PCI-X2"};
break;
case PCI_DEVICE_ID_LPE11000S:
m = (typeof(m)){"LPe11000-S", max_speed,
"PCIe"};
break;
default:
m = (typeof(m)){ NULL };
break;
}
if (mdp && mdp[0] == '\0')
snprintf(mdp, 79,"%s", m.name);
if (descp && descp[0] == '\0')
snprintf(descp, 255,
"Emulex %s %dGb %s Fibre Channel Adapter",
m.name, m.max_speed, m.bus);
}
/**************************************************/
/* lpfc_post_buffer */
/* */
/* This routine will post count buffers to the */
/* ring with the QUE_RING_BUF_CN command. This */
/* allows 3 buffers / command to be posted. */
/* Returns the number of buffers NOT posted. */
/**************************************************/
int
lpfc_post_buffer(struct lpfc_hba * phba, struct lpfc_sli_ring * pring, int cnt,
int type)
{
IOCB_t *icmd;
struct lpfc_iocbq *iocb;
struct lpfc_dmabuf *mp1, *mp2;
cnt += pring->missbufcnt;
/* While there are buffers to post */
while (cnt > 0) {
/* Allocate buffer for command iocb */
spin_lock_irq(phba->host->host_lock);
iocb = lpfc_sli_get_iocbq(phba);
spin_unlock_irq(phba->host->host_lock);
if (iocb == NULL) {
pring->missbufcnt = cnt;
return cnt;
}
icmd = &iocb->iocb;
/* 2 buffers can be posted per command */
/* Allocate buffer to post */
mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
if (mp1)
mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
&mp1->phys);
if (mp1 == 0 || mp1->virt == 0) {
kfree(mp1);
spin_lock_irq(phba->host->host_lock);
lpfc_sli_release_iocbq(phba, iocb);
spin_unlock_irq(phba->host->host_lock);
pring->missbufcnt = cnt;
return cnt;
}
INIT_LIST_HEAD(&mp1->list);
/* Allocate buffer to post */
if (cnt > 1) {
mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
if (mp2)
mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
&mp2->phys);
if (mp2 == 0 || mp2->virt == 0) {
kfree(mp2);
lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
kfree(mp1);
spin_lock_irq(phba->host->host_lock);
lpfc_sli_release_iocbq(phba, iocb);
spin_unlock_irq(phba->host->host_lock);
pring->missbufcnt = cnt;
return cnt;
}
INIT_LIST_HEAD(&mp2->list);
} else {
mp2 = NULL;
}
icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
icmd->ulpBdeCount = 1;
cnt--;
if (mp2) {
icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
cnt--;
icmd->ulpBdeCount = 2;
}
icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
icmd->ulpLe = 1;
spin_lock_irq(phba->host->host_lock);
if (lpfc_sli_issue_iocb(phba, pring, iocb, 0) == IOCB_ERROR) {
lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
kfree(mp1);
cnt++;
if (mp2) {
lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
kfree(mp2);
cnt++;
}
lpfc_sli_release_iocbq(phba, iocb);
pring->missbufcnt = cnt;
spin_unlock_irq(phba->host->host_lock);
return cnt;
}
spin_unlock_irq(phba->host->host_lock);
lpfc_sli_ringpostbuf_put(phba, pring, mp1);
if (mp2) {
lpfc_sli_ringpostbuf_put(phba, pring, mp2);
}
}
pring->missbufcnt = 0;
return 0;
}
/************************************************************************/
/* */
/* lpfc_post_rcv_buf */
/* This routine post initial rcv buffers to the configured rings */
/* */
/************************************************************************/
static int
lpfc_post_rcv_buf(struct lpfc_hba * phba)
{
struct lpfc_sli *psli = &phba->sli;
/* Ring 0, ELS / CT buffers */
lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0, 1);
/* Ring 2 - FCP no buffers needed */
return 0;
}
#define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
/************************************************************************/
/* */
/* lpfc_sha_init */
/* */
/************************************************************************/
static void
lpfc_sha_init(uint32_t * HashResultPointer)
{
HashResultPointer[0] = 0x67452301;
HashResultPointer[1] = 0xEFCDAB89;
HashResultPointer[2] = 0x98BADCFE;
HashResultPointer[3] = 0x10325476;
HashResultPointer[4] = 0xC3D2E1F0;
}
/************************************************************************/
/* */
/* lpfc_sha_iterate */
/* */
/************************************************************************/
static void
lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
{
int t;
uint32_t TEMP;
uint32_t A, B, C, D, E;
t = 16;
do {
HashWorkingPointer[t] =
S(1,
HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
8] ^
HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
} while (++t <= 79);
t = 0;
A = HashResultPointer[0];
B = HashResultPointer[1];
C = HashResultPointer[2];
D = HashResultPointer[3];
E = HashResultPointer[4];
do {
if (t < 20) {
TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
} else if (t < 40) {
TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
} else if (t < 60) {
TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
} else {
TEMP = (B ^ C ^ D) + 0xCA62C1D6;
}
TEMP += S(5, A) + E + HashWorkingPointer[t];
E = D;
D = C;
C = S(30, B);
B = A;
A = TEMP;
} while (++t <= 79);
HashResultPointer[0] += A;
HashResultPointer[1] += B;
HashResultPointer[2] += C;
HashResultPointer[3] += D;
HashResultPointer[4] += E;
}
/************************************************************************/
/* */
/* lpfc_challenge_key */
/* */
/************************************************************************/
static void
lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
{
*HashWorking = (*RandomChallenge ^ *HashWorking);
}
/************************************************************************/
/* */
/* lpfc_hba_init */
/* */
/************************************************************************/
void
lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
{
int t;
uint32_t *HashWorking;
uint32_t *pwwnn = phba->wwnn;
HashWorking = kmalloc(80 * sizeof(uint32_t), GFP_KERNEL);
if (!HashWorking)
return;
memset(HashWorking, 0, (80 * sizeof(uint32_t)));
HashWorking[0] = HashWorking[78] = *pwwnn++;
HashWorking[1] = HashWorking[79] = *pwwnn;
for (t = 0; t < 7; t++)
lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
lpfc_sha_init(hbainit);
lpfc_sha_iterate(hbainit, HashWorking);
kfree(HashWorking);
}
static void
lpfc_cleanup(struct lpfc_hba * phba, uint32_t save_bind)
{
struct lpfc_nodelist *ndlp, *next_ndlp;
/* clean up phba - lpfc specific */
lpfc_can_disctmo(phba);
list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_nlpunmap_list,
nlp_listp) {
lpfc_nlp_remove(phba, ndlp);
}
list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_nlpmap_list,
nlp_listp) {
lpfc_nlp_remove(phba, ndlp);
}
list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_unused_list,
nlp_listp) {
lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
}
list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_plogi_list,
nlp_listp) {
lpfc_nlp_remove(phba, ndlp);
}
list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
nlp_listp) {
lpfc_nlp_remove(phba, ndlp);
}
list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_reglogin_list,
nlp_listp) {
lpfc_nlp_remove(phba, ndlp);
}
list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_prli_list,
nlp_listp) {
lpfc_nlp_remove(phba, ndlp);
}
list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
nlp_listp) {
lpfc_nlp_remove(phba, ndlp);
}
INIT_LIST_HEAD(&phba->fc_nlpmap_list);
INIT_LIST_HEAD(&phba->fc_nlpunmap_list);
INIT_LIST_HEAD(&phba->fc_unused_list);
INIT_LIST_HEAD(&phba->fc_plogi_list);
INIT_LIST_HEAD(&phba->fc_adisc_list);
INIT_LIST_HEAD(&phba->fc_reglogin_list);
INIT_LIST_HEAD(&phba->fc_prli_list);
INIT_LIST_HEAD(&phba->fc_npr_list);
phba->fc_map_cnt = 0;
phba->fc_unmap_cnt = 0;
phba->fc_plogi_cnt = 0;
phba->fc_adisc_cnt = 0;
phba->fc_reglogin_cnt = 0;
phba->fc_prli_cnt = 0;
phba->fc_npr_cnt = 0;
phba->fc_unused_cnt= 0;
return;
}
static void
lpfc_establish_link_tmo(unsigned long ptr)
{
struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
unsigned long iflag;
/* Re-establishing Link, timer expired */
lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
"%d:1300 Re-establishing Link, timer expired "
"Data: x%x x%x\n",
phba->brd_no, phba->fc_flag, phba->hba_state);
spin_lock_irqsave(phba->host->host_lock, iflag);
phba->fc_flag &= ~FC_ESTABLISH_LINK;
spin_unlock_irqrestore(phba->host->host_lock, iflag);
}
static int
lpfc_stop_timer(struct lpfc_hba * phba)
{
struct lpfc_sli *psli = &phba->sli;
/* Instead of a timer, this has been converted to a
* deferred procedding list.
*/
while (!list_empty(&phba->freebufList)) {
struct lpfc_dmabuf *mp = NULL;
list_remove_head((&phba->freebufList), mp,
struct lpfc_dmabuf, list);
if (mp) {
lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
}
}
del_timer_sync(&phba->fcp_poll_timer);
del_timer_sync(&phba->fc_estabtmo);
del_timer_sync(&phba->fc_disctmo);
del_timer_sync(&phba->fc_fdmitmo);
del_timer_sync(&phba->els_tmofunc);
psli = &phba->sli;
del_timer_sync(&psli->mbox_tmo);
return(1);
}
int
lpfc_online(struct lpfc_hba * phba)
{
if (!phba)
return 0;
if (!(phba->fc_flag & FC_OFFLINE_MODE))
return 0;
lpfc_printf_log(phba,
KERN_WARNING,
LOG_INIT,
"%d:0458 Bring Adapter online\n",
phba->brd_no);
if (!lpfc_sli_queue_setup(phba))
return 1;
if (lpfc_sli_hba_setup(phba)) /* Initialize the HBA */
return 1;
spin_lock_irq(phba->host->host_lock);
phba->fc_flag &= ~FC_OFFLINE_MODE;
spin_unlock_irq(phba->host->host_lock);
return 0;
}
int
lpfc_offline(struct lpfc_hba * phba)
{
struct lpfc_sli_ring *pring;
struct lpfc_sli *psli;
unsigned long iflag;
int i;
int cnt = 0;
if (!phba)
return 0;
if (phba->fc_flag & FC_OFFLINE_MODE)
return 0;
psli = &phba->sli;
lpfc_linkdown(phba);
lpfc_sli_flush_mbox_queue(phba);
for (i = 0; i < psli->num_rings; i++) {
pring = &psli->ring[i];
/* The linkdown event takes 30 seconds to timeout. */
while (pring->txcmplq_cnt) {
mdelay(10);
if (cnt++ > 3000) {
lpfc_printf_log(phba,
KERN_WARNING, LOG_INIT,
"%d:0466 Outstanding IO when "
"bringing Adapter offline\n",
phba->brd_no);
break;
}
}
}
/* stop all timers associated with this hba */
lpfc_stop_timer(phba);
phba->work_hba_events = 0;
phba->work_ha = 0;
lpfc_printf_log(phba,
KERN_WARNING,
LOG_INIT,
"%d:0460 Bring Adapter offline\n",
phba->brd_no);
/* Bring down the SLI Layer and cleanup. The HBA is offline
now. */
lpfc_sli_hba_down(phba);
lpfc_cleanup(phba, 1);
spin_lock_irqsave(phba->host->host_lock, iflag);
phba->fc_flag |= FC_OFFLINE_MODE;
spin_unlock_irqrestore(phba->host->host_lock, iflag);
return 0;
}
/******************************************************************************
* Function name: lpfc_scsi_free
*
* Description: Called from lpfc_pci_remove_one free internal driver resources
*
******************************************************************************/
static int
lpfc_scsi_free(struct lpfc_hba * phba)
{
struct lpfc_scsi_buf *sb, *sb_next;
struct lpfc_iocbq *io, *io_next;
spin_lock_irq(phba->host->host_lock);
/* Release all the lpfc_scsi_bufs maintained by this host. */
list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) {
list_del(&sb->list);
pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
sb->dma_handle);
kfree(sb);
phba->total_scsi_bufs--;
}
/* Release all the lpfc_iocbq entries maintained by this host. */
list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
list_del(&io->list);
kfree(io);
phba->total_iocbq_bufs--;
}
spin_unlock_irq(phba->host->host_lock);
return 0;
}
static int __devinit
lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
{
struct Scsi_Host *host;
struct lpfc_hba *phba;
struct lpfc_sli *psli;
struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
unsigned long bar0map_len, bar2map_len;
int error = -ENODEV, retval;
int i;
uint16_t iotag;
if (pci_enable_device(pdev))
goto out;
if (pci_request_regions(pdev, LPFC_DRIVER_NAME))
goto out_disable_device;
host = scsi_host_alloc(&lpfc_template, sizeof (struct lpfc_hba));
if (!host)
goto out_release_regions;
phba = (struct lpfc_hba*)host->hostdata;
memset(phba, 0, sizeof (struct lpfc_hba));
phba->host = host;
phba->fc_flag |= FC_LOADING;
phba->pcidev = pdev;
/* Assign an unused board number */
if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL))
goto out_put_host;
error = idr_get_new(&lpfc_hba_index, NULL, &phba->brd_no);
if (error)
goto out_put_host;
host->unique_id = phba->brd_no;
INIT_LIST_HEAD(&phba->ctrspbuflist);
INIT_LIST_HEAD(&phba->rnidrspbuflist);
INIT_LIST_HEAD(&phba->freebufList);
/* Initialize timers used by driver */
init_timer(&phba->fc_estabtmo);
phba->fc_estabtmo.function = lpfc_establish_link_tmo;
phba->fc_estabtmo.data = (unsigned long)phba;
init_timer(&phba->fc_disctmo);
phba->fc_disctmo.function = lpfc_disc_timeout;
phba->fc_disctmo.data = (unsigned long)phba;
init_timer(&phba->fc_fdmitmo);
phba->fc_fdmitmo.function = lpfc_fdmi_tmo;
phba->fc_fdmitmo.data = (unsigned long)phba;
init_timer(&phba->els_tmofunc);
phba->els_tmofunc.function = lpfc_els_timeout;
phba->els_tmofunc.data = (unsigned long)phba;
psli = &phba->sli;
init_timer(&psli->mbox_tmo);
psli->mbox_tmo.function = lpfc_mbox_timeout;
psli->mbox_tmo.data = (unsigned long)phba;
init_timer(&phba->fcp_poll_timer);
phba->fcp_poll_timer.function = lpfc_poll_timeout;
phba->fcp_poll_timer.data = (unsigned long)phba;
/*
* Get all the module params for configuring this host and then
* establish the host parameters.
*/
lpfc_get_cfgparam(phba);
host->max_id = LPFC_MAX_TARGET;
host->max_lun = phba->cfg_max_luns;
host->this_id = -1;
/* Initialize all internally managed lists. */
INIT_LIST_HEAD(&phba->fc_nlpmap_list);
INIT_LIST_HEAD(&phba->fc_nlpunmap_list);
INIT_LIST_HEAD(&phba->fc_unused_list);
INIT_LIST_HEAD(&phba->fc_plogi_list);
INIT_LIST_HEAD(&phba->fc_adisc_list);
INIT_LIST_HEAD(&phba->fc_reglogin_list);
INIT_LIST_HEAD(&phba->fc_prli_list);
INIT_LIST_HEAD(&phba->fc_npr_list);
pci_set_master(pdev);
retval = pci_set_mwi(pdev);
if (retval)
dev_printk(KERN_WARNING, &pdev->dev,
"Warning: pci_set_mwi returned %d\n", retval);
if (pci_set_dma_mask(phba->pcidev, DMA_64BIT_MASK) != 0)
if (pci_set_dma_mask(phba->pcidev, DMA_32BIT_MASK) != 0)
goto out_idr_remove;
/*
* Get the bus address of Bar0 and Bar2 and the number of bytes
* required by each mapping.
*/
phba->pci_bar0_map = pci_resource_start(phba->pcidev, 0);
bar0map_len = pci_resource_len(phba->pcidev, 0);
phba->pci_bar2_map = pci_resource_start(phba->pcidev, 2);
bar2map_len = pci_resource_len(phba->pcidev, 2);
/* Map HBA SLIM to a kernel virtual address. */
phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
if (!phba->slim_memmap_p) {
error = -ENODEV;
dev_printk(KERN_ERR, &pdev->dev,
"ioremap failed for SLIM memory.\n");
goto out_idr_remove;
}
/* Map HBA Control Registers to a kernel virtual address. */
phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
if (!phba->ctrl_regs_memmap_p) {
error = -ENODEV;
dev_printk(KERN_ERR, &pdev->dev,
"ioremap failed for HBA control registers.\n");
goto out_iounmap_slim;
}
/* Allocate memory for SLI-2 structures */
phba->slim2p = dma_alloc_coherent(&phba->pcidev->dev, SLI2_SLIM_SIZE,
&phba->slim2p_mapping, GFP_KERNEL);
if (!phba->slim2p)
goto out_iounmap;
memset(phba->slim2p, 0, SLI2_SLIM_SIZE);
/* Initialize the SLI Layer to run with lpfc HBAs. */
lpfc_sli_setup(phba);
lpfc_sli_queue_setup(phba);
error = lpfc_mem_alloc(phba);
if (error)
goto out_free_slim;
/* Initialize and populate the iocb list per host. */
INIT_LIST_HEAD(&phba->lpfc_iocb_list);
for (i = 0; i < LPFC_IOCB_LIST_CNT; i++) {
iocbq_entry = kmalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
if (iocbq_entry == NULL) {
printk(KERN_ERR "%s: only allocated %d iocbs of "
"expected %d count. Unloading driver.\n",
__FUNCTION__, i, LPFC_IOCB_LIST_CNT);
error = -ENOMEM;
goto out_free_iocbq;
}
memset(iocbq_entry, 0, sizeof(struct lpfc_iocbq));
iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
if (iotag == 0) {
kfree (iocbq_entry);
printk(KERN_ERR "%s: failed to allocate IOTAG. "
"Unloading driver.\n",
__FUNCTION__);
error = -ENOMEM;
goto out_free_iocbq;
}
spin_lock_irq(phba->host->host_lock);
list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
phba->total_iocbq_bufs++;
spin_unlock_irq(phba->host->host_lock);
}
/* Initialize HBA structure */
phba->fc_edtov = FF_DEF_EDTOV;
phba->fc_ratov = FF_DEF_RATOV;
phba->fc_altov = FF_DEF_ALTOV;
phba->fc_arbtov = FF_DEF_ARBTOV;
INIT_LIST_HEAD(&phba->work_list);
phba->work_ha_mask = (HA_ERATT|HA_MBATT|HA_LATT);
phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
/* Startup the kernel thread for this host adapter. */
phba->worker_thread = kthread_run(lpfc_do_work, phba,
"lpfc_worker_%d", phba->brd_no);
if (IS_ERR(phba->worker_thread)) {
error = PTR_ERR(phba->worker_thread);
goto out_free_iocbq;
}
/*
* Set initial can_queue value since 0 is no longer supported and
* scsi_add_host will fail. This will be adjusted later based on the
* max xri value determined in hba setup.
*/
host->can_queue = phba->cfg_hba_queue_depth - 10;
/* Tell the midlayer we support 16 byte commands */
host->max_cmd_len = 16;
/* Initialize the list of scsi buffers used by driver for scsi IO. */
spin_lock_init(&phba->scsi_buf_list_lock);
INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);
host->transportt = lpfc_transport_template;
pci_set_drvdata(pdev, host);
error = scsi_add_host(host, &pdev->dev);
if (error)
goto out_kthread_stop;
error = lpfc_alloc_sysfs_attr(phba);
if (error)
goto out_remove_host;
if (phba->cfg_use_msi) {
error = pci_enable_msi(phba->pcidev);
if (error)
lpfc_printf_log(phba, KERN_INFO, LOG_INIT, "%d:0452 "
"Enable MSI failed, continuing with "
"IRQ\n", phba->brd_no);
}
error = request_irq(phba->pcidev->irq, lpfc_intr_handler, IRQF_SHARED,
LPFC_DRIVER_NAME, phba);
if (error) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"%d:0451 Enable interrupt handler failed\n",
phba->brd_no);
goto out_free_sysfs_attr;
}
phba->MBslimaddr = phba->slim_memmap_p;
phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
error = lpfc_sli_hba_setup(phba);
if (error) {
error = -ENODEV;
goto out_free_irq;
}
/*
* hba setup may have changed the hba_queue_depth so we need to adjust
* the value of can_queue.
*/
host->can_queue = phba->cfg_hba_queue_depth - 10;
lpfc_discovery_wait(phba);
if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
spin_lock_irq(phba->host->host_lock);
lpfc_poll_start_timer(phba);
spin_unlock_irq(phba->host->host_lock);
}
/*
* set fixed host attributes
* Must done after lpfc_sli_hba_setup()
*/
fc_host_node_name(host) = wwn_to_u64(phba->fc_nodename.u.wwn);
fc_host_port_name(host) = wwn_to_u64(phba->fc_portname.u.wwn);
fc_host_supported_classes(host) = FC_COS_CLASS3;
memset(fc_host_supported_fc4s(host), 0,
sizeof(fc_host_supported_fc4s(host)));
fc_host_supported_fc4s(host)[2] = 1;
fc_host_supported_fc4s(host)[7] = 1;
lpfc_get_hba_sym_node_name(phba, fc_host_symbolic_name(host));
fc_host_supported_speeds(host) = 0;
if (phba->lmt & LMT_10Gb)
fc_host_supported_speeds(host) |= FC_PORTSPEED_10GBIT;
if (phba->lmt & LMT_4Gb)
fc_host_supported_speeds(host) |= FC_PORTSPEED_4GBIT;
if (phba->lmt & LMT_2Gb)
fc_host_supported_speeds(host) |= FC_PORTSPEED_2GBIT;
if (phba->lmt & LMT_1Gb)
fc_host_supported_speeds(host) |= FC_PORTSPEED_1GBIT;
fc_host_maxframe_size(host) =
((((uint32_t) phba->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
(uint32_t) phba->fc_sparam.cmn.bbRcvSizeLsb);
/* This value is also unchanging */
memset(fc_host_active_fc4s(host), 0,
sizeof(fc_host_active_fc4s(host)));
fc_host_active_fc4s(host)[2] = 1;
fc_host_active_fc4s(host)[7] = 1;
spin_lock_irq(phba->host->host_lock);
phba->fc_flag &= ~FC_LOADING;
spin_unlock_irq(phba->host->host_lock);
return 0;
out_free_irq:
lpfc_stop_timer(phba);
phba->work_hba_events = 0;
free_irq(phba->pcidev->irq, phba);
pci_disable_msi(phba->pcidev);
out_free_sysfs_attr:
lpfc_free_sysfs_attr(phba);
out_remove_host:
fc_remove_host(phba->host);
scsi_remove_host(phba->host);
out_kthread_stop:
kthread_stop(phba->worker_thread);
out_free_iocbq:
list_for_each_entry_safe(iocbq_entry, iocbq_next,
&phba->lpfc_iocb_list, list) {
spin_lock_irq(phba->host->host_lock);
kfree(iocbq_entry);
phba->total_iocbq_bufs--;
spin_unlock_irq(phba->host->host_lock);
}
lpfc_mem_free(phba);
out_free_slim:
dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, phba->slim2p,
phba->slim2p_mapping);
out_iounmap:
iounmap(phba->ctrl_regs_memmap_p);
out_iounmap_slim:
iounmap(phba->slim_memmap_p);
out_idr_remove:
idr_remove(&lpfc_hba_index, phba->brd_no);
out_put_host:
phba->host = NULL;
scsi_host_put(host);
out_release_regions:
pci_release_regions(pdev);
out_disable_device:
pci_disable_device(pdev);
out:
pci_set_drvdata(pdev, NULL);
return error;
}
static void __devexit
lpfc_pci_remove_one(struct pci_dev *pdev)
{
struct Scsi_Host *host = pci_get_drvdata(pdev);
struct lpfc_hba *phba = (struct lpfc_hba *)host->hostdata;
unsigned long iflag;
lpfc_free_sysfs_attr(phba);
spin_lock_irqsave(phba->host->host_lock, iflag);
phba->fc_flag |= FC_UNLOADING;
spin_unlock_irqrestore(phba->host->host_lock, iflag);
fc_remove_host(phba->host);
scsi_remove_host(phba->host);
kthread_stop(phba->worker_thread);
/*
* Bring down the SLI Layer. This step disable all interrupts,
* clears the rings, discards all mailbox commands, and resets
* the HBA.
*/
lpfc_sli_hba_down(phba);
lpfc_sli_brdrestart(phba);
/* Release the irq reservation */
free_irq(phba->pcidev->irq, phba);
pci_disable_msi(phba->pcidev);
lpfc_cleanup(phba, 0);
lpfc_stop_timer(phba);
phba->work_hba_events = 0;
/*
* Call scsi_free before mem_free since scsi bufs are released to their
* corresponding pools here.
*/
lpfc_scsi_free(phba);
lpfc_mem_free(phba);
/* Free resources associated with SLI2 interface */
dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
phba->slim2p, phba->slim2p_mapping);
/* unmap adapter SLIM and Control Registers */
iounmap(phba->ctrl_regs_memmap_p);
iounmap(phba->slim_memmap_p);
pci_release_regions(phba->pcidev);
pci_disable_device(phba->pcidev);
idr_remove(&lpfc_hba_index, phba->brd_no);
scsi_host_put(phba->host);
pci_set_drvdata(pdev, NULL);
}
/**
* lpfc_io_error_detected - called when PCI error is detected
* @pdev: Pointer to PCI device
* @state: The current pci conneection state
*
* This function is called after a PCI bus error affecting
* this device has been detected.
*/
static pci_ers_result_t lpfc_io_error_detected(struct pci_dev *pdev,
pci_channel_state_t state)
{
struct Scsi_Host *host = pci_get_drvdata(pdev);
struct lpfc_hba *phba = (struct lpfc_hba *)host->hostdata;
struct lpfc_sli *psli = &phba->sli;
struct lpfc_sli_ring *pring;
if (state == pci_channel_io_perm_failure) {
lpfc_pci_remove_one(pdev);
return PCI_ERS_RESULT_DISCONNECT;
}
pci_disable_device(pdev);
/*
* There may be I/Os dropped by the firmware.
* Error iocb (I/O) on txcmplq and let the SCSI layer
* retry it after re-establishing link.
*/
pring = &psli->ring[psli->fcp_ring];
lpfc_sli_abort_iocb_ring(phba, pring);
/* Request a slot reset. */
return PCI_ERS_RESULT_NEED_RESET;
}
/**
* lpfc_io_slot_reset - called after the pci bus has been reset.
* @pdev: Pointer to PCI device
*
* Restart the card from scratch, as if from a cold-boot.
*/
static pci_ers_result_t lpfc_io_slot_reset(struct pci_dev *pdev)
{
struct Scsi_Host *host = pci_get_drvdata(pdev);
struct lpfc_hba *phba = (struct lpfc_hba *)host->hostdata;
struct lpfc_sli *psli = &phba->sli;
int bars = pci_select_bars(pdev, IORESOURCE_MEM);
dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
if (pci_enable_device_bars(pdev, bars)) {
printk(KERN_ERR "lpfc: Cannot re-enable "
"PCI device after reset.\n");
return PCI_ERS_RESULT_DISCONNECT;
}
pci_set_master(pdev);
/* Re-establishing Link */
spin_lock_irq(phba->host->host_lock);
phba->fc_flag |= FC_ESTABLISH_LINK;
psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
spin_unlock_irq(phba->host->host_lock);
/* Take device offline; this will perform cleanup */
lpfc_offline(phba);
lpfc_sli_brdrestart(phba);
return PCI_ERS_RESULT_RECOVERED;
}
/**
* lpfc_io_resume - called when traffic can start flowing again.
* @pdev: Pointer to PCI device
*
* This callback is called when the error recovery driver tells us that
* its OK to resume normal operation.
*/
static void lpfc_io_resume(struct pci_dev *pdev)
{
struct Scsi_Host *host = pci_get_drvdata(pdev);
struct lpfc_hba *phba = (struct lpfc_hba *)host->hostdata;
if (lpfc_online(phba) == 0) {
mod_timer(&phba->fc_estabtmo, jiffies + HZ * 60);
}
}
static struct pci_device_id lpfc_id_table[] = {
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
PCI_ANY_ID, PCI_ANY_ID, },
{ 0 }
};
MODULE_DEVICE_TABLE(pci, lpfc_id_table);
static struct pci_error_handlers lpfc_err_handler = {
.error_detected = lpfc_io_error_detected,
.slot_reset = lpfc_io_slot_reset,
.resume = lpfc_io_resume,
};
static struct pci_driver lpfc_driver = {
.name = LPFC_DRIVER_NAME,
.id_table = lpfc_id_table,
.probe = lpfc_pci_probe_one,
.remove = __devexit_p(lpfc_pci_remove_one),
.err_handler = &lpfc_err_handler,
};
static int __init
lpfc_init(void)
{
int error = 0;
printk(LPFC_MODULE_DESC "\n");
printk(LPFC_COPYRIGHT "\n");
lpfc_transport_template =
fc_attach_transport(&lpfc_transport_functions);
if (!lpfc_transport_template)
return -ENOMEM;
error = pci_register_driver(&lpfc_driver);
if (error)
fc_release_transport(lpfc_transport_template);
return error;
}
static void __exit
lpfc_exit(void)
{
pci_unregister_driver(&lpfc_driver);
fc_release_transport(lpfc_transport_template);
}
module_init(lpfc_init);
module_exit(lpfc_exit);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION(LPFC_MODULE_DESC);
MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
MODULE_VERSION("0:" LPFC_DRIVER_VERSION);
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