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[SCSI] lpfc 8.3.4: Consistently Implement persistent port disable

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Consistently implement persistent port disable.

Ability was to be managed in the adapter via firmware via flash settings.
However, not all firmware images supported it. Uniformly support it
everywhere.

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
James Smart 2009-07-19 10:01:10 -04:00 committed by James Bottomley
parent 8fa38513dd
commit a0c87cbdb5
8 changed files with 242 additions and 32 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
drivers/scsi/lpfc/lpfc.h
View file

@ -525,6 +525,7 @@ struct lpfc_hba {
#define FCP_XRI_ABORT_EVENT 0x20
#define ELS_XRI_ABORT_EVENT 0x40
#define ASYNC_EVENT 0x80
#define LINK_DISABLED 0x100 /* Link disabled by user */
struct lpfc_dmabuf slim2p;
MAILBOX_t *mbox;

7
drivers/scsi/lpfc/lpfc_attr.c
View file

@ -394,7 +394,12 @@ lpfc_link_state_show(struct device *dev, struct device_attribute *attr,
case LPFC_INIT_MBX_CMDS:
case LPFC_LINK_DOWN:
case LPFC_HBA_ERROR:
len += snprintf(buf + len, PAGE_SIZE-len, "Link Down\n");
if (phba->hba_flag & LINK_DISABLED)
len += snprintf(buf + len, PAGE_SIZE-len,
"Link Down - User disabled\n");
else
len += snprintf(buf + len, PAGE_SIZE-len,
"Link Down\n");
break;
case LPFC_LINK_UP:
case LPFC_CLEAR_LA:

5
drivers/scsi/lpfc/lpfc_crtn.h
View file

@ -21,7 +21,9 @@
typedef int (*node_filter)(struct lpfc_nodelist *, void *);
struct fc_rport;
void lpfc_dump_mem(struct lpfc_hba *, LPFC_MBOXQ_t *, uint16_t);
void lpfc_down_link(struct lpfc_hba *, LPFC_MBOXQ_t *);
void lpfc_sli_read_link_ste(struct lpfc_hba *);
void lpfc_dump_mem(struct lpfc_hba *, LPFC_MBOXQ_t *, uint16_t, uint16_t);
void lpfc_dump_wakeup_param(struct lpfc_hba *, LPFC_MBOXQ_t *);
void lpfc_dump_static_vport(struct lpfc_hba *, LPFC_MBOXQ_t *, uint16_t);
int lpfc_dump_fcoe_param(struct lpfc_hba *, struct lpfcMboxq *);
@ -234,6 +236,7 @@ void lpfc_sli_def_mbox_cmpl(struct lpfc_hba *, LPFC_MBOXQ_t *);
int lpfc_sli_issue_iocb(struct lpfc_hba *, uint32_t,
struct lpfc_iocbq *, uint32_t);
void lpfc_sli_pcimem_bcopy(void *, void *, uint32_t);
void lpfc_sli_bemem_bcopy(void *, void *, uint32_t);
void lpfc_sli_abort_iocb_ring(struct lpfc_hba *, struct lpfc_sli_ring *);
void lpfc_sli_flush_fcp_rings(struct lpfc_hba *);
int lpfc_sli_ringpostbuf_put(struct lpfc_hba *, struct lpfc_sli_ring *,

4
drivers/scsi/lpfc/lpfc_hw.h
View file

@ -2496,8 +2496,8 @@ typedef struct {
#define DMP_VPORT_REGION_SIZE 0x200
#define DMP_MBOX_OFFSET_WORD 0x5
#define DMP_REGION_FCOEPARAM 0x17 /* fcoe param region */
#define DMP_FCOEPARAM_RGN_SIZE 0x400
#define DMP_REGION_23 0x17 /* fcoe param and port state region */
#define DMP_RGN23_SIZE 0x400
#define WAKE_UP_PARMS_REGION_ID 4
#define WAKE_UP_PARMS_WORD_SIZE 15

59
drivers/scsi/lpfc/lpfc_init.c
View file

@ -211,7 +211,7 @@ lpfc_config_port_prep(struct lpfc_hba *phba)
goto out_free_mbox;
do {
lpfc_dump_mem(phba, pmb, offset);
lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
if (rc != MBX_SUCCESS) {
@ -425,6 +425,9 @@ lpfc_config_port_post(struct lpfc_hba *phba)
return -EIO;
}
/* Check if the port is disabled */
lpfc_sli_read_link_ste(phba);
/* 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 =
@ -524,27 +527,49 @@ lpfc_config_port_post(struct lpfc_hba *phba)
/* Set up error attention (ERATT) polling timer */
mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
lpfc_init_link(phba, pmb, phba->cfg_topology, phba->cfg_link_speed);
pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
lpfc_set_loopback_flag(phba);
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
if (rc != MBX_SUCCESS) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
/* Check if the port is disabled */
lpfc_sli_read_serdes_param(phba);
if (phba->hba_flag & LINK_DISABLED) {
lpfc_printf_log(phba,
KERN_ERR, LOG_INIT,
"2598 Adapter Link is disabled.\n");
lpfc_down_link(phba, pmb);
pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
lpfc_printf_log(phba,
KERN_ERR, LOG_INIT,
"2599 Adapter failed to issue DOWN_LINK"
" mbox command rc 0x%x\n", rc);
mempool_free(pmb, phba->mbox_mem_pool);
return -EIO;
}
} else {
lpfc_init_link(phba, pmb, phba->cfg_topology,
phba->cfg_link_speed);
pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
lpfc_set_loopback_flag(phba);
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
if (rc != MBX_SUCCESS) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"0454 Adapter failed to init, mbxCmd x%x "
"INIT_LINK, mbxStatus x%x\n",
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 */
/* 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->link_state = LPFC_HBA_ERROR;
if (rc != MBX_BUSY)
mempool_free(pmb, phba->mbox_mem_pool);
return -EIO;
phba->link_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 */
pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);

36
drivers/scsi/lpfc/lpfc_mbox.c
View file

@ -79,21 +79,37 @@ lpfc_dump_static_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb,
}
/**
* lpfc_dump_mem - Prepare a mailbox command for retrieving HBA's VPD memory
* lpfc_down_link - Bring down HBAs link.
* @phba: pointer to lpfc hba data structure.
* @pmb: pointer to the driver internal queue element for mailbox command.
* @offset: offset for dumping VPD memory mailbox command.
*
* This routine prepares a mailbox command to bring down HBA link.
**/
void
lpfc_down_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
MAILBOX_t *mb;
memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
mb = &pmb->u.mb;
mb->mbxCommand = MBX_DOWN_LINK;
mb->mbxOwner = OWN_HOST;
}
/**
* lpfc_dump_mem - Prepare a mailbox command for reading a region.
* @phba: pointer to lpfc hba data structure.
* @pmb: pointer to the driver internal queue element for mailbox command.
* @offset: offset into the region.
* @region_id: config region id.
*
* The dump mailbox command provides a method for the device driver to obtain
* various types of information from the HBA device.
*
* This routine prepares the mailbox command for dumping HBA Vital Product
* Data (VPD) memory. This mailbox command is to be used for retrieving a
* portion (DMP_RSP_SIZE bytes) of a HBA's VPD from the HBA at an address
* offset specified by the offset parameter.
* This routine prepares the mailbox command for dumping HBA's config region.
**/
void
lpfc_dump_mem(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb, uint16_t offset)
lpfc_dump_mem(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb, uint16_t offset,
uint16_t region_id)
{
MAILBOX_t *mb;
void *ctx;
@ -107,7 +123,7 @@ lpfc_dump_mem(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb, uint16_t offset)
mb->un.varDmp.cv = 1;
mb->un.varDmp.type = DMP_NV_PARAMS;
mb->un.varDmp.entry_index = offset;
mb->un.varDmp.region_id = DMP_REGION_VPD;
mb->un.varDmp.region_id = region_id;
mb->un.varDmp.word_cnt = (DMP_RSP_SIZE / sizeof (uint32_t));
mb->un.varDmp.co = 0;
mb->un.varDmp.resp_offset = 0;
@ -1864,8 +1880,8 @@ lpfc_dump_fcoe_param(struct lpfc_hba *phba,
mb->mbxCommand = MBX_DUMP_MEMORY;
mb->un.varDmp.type = DMP_NV_PARAMS;
mb->un.varDmp.region_id = DMP_REGION_FCOEPARAM;
mb->un.varDmp.sli4_length = DMP_FCOEPARAM_RGN_SIZE;
mb->un.varDmp.region_id = DMP_REGION_23;
mb->un.varDmp.sli4_length = DMP_RGN23_SIZE;
mb->un.varWords[3] = putPaddrLow(mp->phys);
mb->un.varWords[4] = putPaddrHigh(mp->phys);
return 0;

158
drivers/scsi/lpfc/lpfc_sli.c
View file

@ -4139,7 +4139,7 @@ lpfc_sli4_read_fcoe_params(struct lpfc_hba *phba,
return -EIO;
}
data_length = mqe->un.mb_words[5];
if (data_length > DMP_FCOEPARAM_RGN_SIZE) {
if (data_length > DMP_RGN23_SIZE) {
lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
return -EIO;
@ -6788,6 +6788,33 @@ lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
}
/**
* lpfc_sli_bemem_bcopy - SLI memory copy function
* @srcp: Source memory pointer.
* @destp: Destination memory pointer.
* @cnt: Number of words required to be copied.
*
* This function is used for copying data between a data structure
* with big endian representation to local endianness.
* This function can be called with or without lock.
**/
void
lpfc_sli_bemem_bcopy(void *srcp, void *destp, uint32_t cnt)
{
uint32_t *src = srcp;
uint32_t *dest = destp;
uint32_t ldata;
int i;
for (i = 0; i < (int)cnt; i += sizeof(uint32_t)) {
ldata = *src;
ldata = be32_to_cpu(ldata);
*dest = ldata;
src++;
dest++;
}
}
/**
* lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq
* @phba: Pointer to HBA context object.
@ -11564,3 +11591,132 @@ lpfc_sli4_read_fcf_record(struct lpfc_hba *phba, uint16_t fcf_index)
error = 0;
return error;
}
/**
* lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
* @phba: pointer to lpfc hba data structure.
*
* This function read region 23 and parse TLV for port status to
* decide if the user disaled the port. If the TLV indicates the
* port is disabled, the hba_flag is set accordingly.
**/
void
lpfc_sli_read_link_ste(struct lpfc_hba *phba)
{
LPFC_MBOXQ_t *pmb = NULL;
MAILBOX_t *mb;
uint8_t *rgn23_data = NULL;
uint32_t offset = 0, data_size, sub_tlv_len, tlv_offset;
int rc;
pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!pmb) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"2600 lpfc_sli_read_serdes_param failed to"
" allocate mailbox memory\n");
goto out;
}
mb = &pmb->u.mb;
/* Get adapter Region 23 data */
rgn23_data = kzalloc(DMP_RGN23_SIZE, GFP_KERNEL);
if (!rgn23_data)
goto out;
do {
lpfc_dump_mem(phba, pmb, offset, DMP_REGION_23);
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
if (rc != MBX_SUCCESS) {
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"2601 lpfc_sli_read_link_ste failed to"
" read config region 23 rc 0x%x Status 0x%x\n",
rc, mb->mbxStatus);
mb->un.varDmp.word_cnt = 0;
}
/*
* dump mem may return a zero when finished or we got a
* mailbox error, either way we are done.
*/
if (mb->un.varDmp.word_cnt == 0)
break;
if (mb->un.varDmp.word_cnt > DMP_RGN23_SIZE - offset)
mb->un.varDmp.word_cnt = DMP_RGN23_SIZE - offset;
lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
rgn23_data + offset,
mb->un.varDmp.word_cnt);
offset += mb->un.varDmp.word_cnt;
} while (mb->un.varDmp.word_cnt && offset < DMP_RGN23_SIZE);
data_size = offset;
offset = 0;
if (!data_size)
goto out;
/* Check the region signature first */
if (memcmp(&rgn23_data[offset], LPFC_REGION23_SIGNATURE, 4)) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"2619 Config region 23 has bad signature\n");
goto out;
}
offset += 4;
/* Check the data structure version */
if (rgn23_data[offset] != LPFC_REGION23_VERSION) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"2620 Config region 23 has bad version\n");
goto out;
}
offset += 4;
/* Parse TLV entries in the region */
while (offset < data_size) {
if (rgn23_data[offset] == LPFC_REGION23_LAST_REC)
break;
/*
* If the TLV is not driver specific TLV or driver id is
* not linux driver id, skip the record.
*/
if ((rgn23_data[offset] != DRIVER_SPECIFIC_TYPE) ||
(rgn23_data[offset + 2] != LINUX_DRIVER_ID) ||
(rgn23_data[offset + 3] != 0)) {
offset += rgn23_data[offset + 1] * 4 + 4;
continue;
}
/* Driver found a driver specific TLV in the config region */
sub_tlv_len = rgn23_data[offset + 1] * 4;
offset += 4;
tlv_offset = 0;
/*
* Search for configured port state sub-TLV.
*/
while ((offset < data_size) &&
(tlv_offset < sub_tlv_len)) {
if (rgn23_data[offset] == LPFC_REGION23_LAST_REC) {
offset += 4;
tlv_offset += 4;
break;
}
if (rgn23_data[offset] != PORT_STE_TYPE) {
offset += rgn23_data[offset + 1] * 4 + 4;
tlv_offset += rgn23_data[offset + 1] * 4 + 4;
continue;
}
/* This HBA contains PORT_STE configured */
if (!rgn23_data[offset + 2])
phba->hba_flag |= LINK_DISABLED;
goto out;
}
}
out:
if (pmb)
mempool_free(pmb, phba->mbox_mem_pool);
kfree(rgn23_data);
return;
}

4
drivers/scsi/lpfc/lpfc_sli4.h
View file

@ -151,6 +151,10 @@ struct lpfc_fcf {
#define LPFC_REGION23_SIGNATURE "RG23"
#define LPFC_REGION23_VERSION 1
#define LPFC_REGION23_LAST_REC 0xff
#define DRIVER_SPECIFIC_TYPE 0xA2
#define LINUX_DRIVER_ID 0x20
#define PORT_STE_TYPE 0x1
struct lpfc_fip_param_hdr {
uint8_t type;
#define FCOE_PARAM_TYPE 0xA0