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[SCSI] Lpfc 8.3.28: FC and SCSI Discovery Fixes 

FC and SCSI Discovery Fixes:

- Clear the virtual fabrics bit (word 1 bit 30) when sending the FLOGI
  and FDISC. (CR 124339)
- Return a MLQUEUE_DEVICE_BUSY if the driver detects that an I/O is being
  retried too quickly (CR 124668)
- Remove NDLP reference put in lpfc_cmpl_els_logo_acc for all but fabric
  nodes (CR 123924)
- Only retry FDISCs every second and stop retrying after devloss number
  of retries (CR 13939)
- Check to see if vports are unloading before adding them to the vport
  work array. (CR 124996)
- Fixed illegal state transition during driver unload (CR 124191)
- Added missing protection on setting/clearing of vport->fc_flag bit (CR 126002)
- Set NPIV flag in lpfc_mbx_process_link_up for all ports sli3 and
  above. (CR 126094)
- Clear FCP command bytes that are not used. (CR 126209)

Signed-off-by: Alex Iannicelli <alex.iannicelli@emulex.com>
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
James Smart 2011-12-13 13:22:17 -05:00 committed by James Bottomley
parent cb69f7decc
commit df9e1b59f9
8 changed files with 75 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
drivers/scsi/lpfc/lpfc_els.c
View File

@ -1075,6 +1075,7 @@ lpfc_issue_els_flogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
/* Setup CSPs accordingly for Fabric */
sp->cmn.e_d_tov = 0;
sp->cmn.w2.r_a_tov = 0;
sp->cmn.virtual_fabric_support = 0;
sp->cls1.classValid = 0;
sp->cls2.seqDelivery = 1;
sp->cls3.seqDelivery = 1;
@ -3066,17 +3067,22 @@ lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
if (did == FDMI_DID)
retry = 1;
if (((cmd == ELS_CMD_FLOGI) || (cmd == ELS_CMD_FDISC)) &&
if ((cmd == ELS_CMD_FLOGI) &&
(phba->fc_topology != LPFC_TOPOLOGY_LOOP) &&
!lpfc_error_lost_link(irsp)) {
/* FLOGI retry policy */
retry = 1;
/* retry forever */
/* retry FLOGI forever */
maxretry = 0;
if (cmdiocb->retry >= 100)
delay = 5000;
else if (cmdiocb->retry >= 32)
delay = 1000;
} else if ((cmd == ELS_CMD_FDISC) && !lpfc_error_lost_link(irsp)) {
/* retry FDISCs every second up to devloss */
retry = 1;
maxretry = vport->cfg_devloss_tmo;
delay = 1000;
}
cmdiocb->retry++;
@ -3389,11 +3395,17 @@ lpfc_cmpl_els_logo_acc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
/*
* The driver received a LOGO from the rport and has ACK'd it.
* At this point, the driver is done so release the IOCB and
* remove the ndlp reference.
* At this point, the driver is done so release the IOCB
*/
lpfc_els_free_iocb(phba, cmdiocb);
lpfc_nlp_put(ndlp);
/*
* Remove the ndlp reference if it's a fabric node that has
* sent us an unsolicted LOGO.
*/
if (ndlp->nlp_type & NLP_FABRIC)
lpfc_nlp_put(ndlp);
return;
}
@ -7231,6 +7243,7 @@ lpfc_issue_els_fdisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
/* Setup CSPs accordingly for Fabric */
sp->cmn.e_d_tov = 0;
sp->cmn.w2.r_a_tov = 0;
sp->cmn.virtual_fabric_support = 0;
sp->cls1.classValid = 0;
sp->cls2.seqDelivery = 1;
sp->cls3.seqDelivery = 1;

29
drivers/scsi/lpfc/lpfc_hbadisc.c
View File

@ -2646,9 +2646,14 @@ lpfc_init_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
{
struct lpfc_vport *vport = mboxq->vport;
/* VFI not supported on interface type 0, just do the flogi */
if (mboxq->u.mb.mbxStatus && (bf_get(lpfc_sli_intf_if_type,
&phba->sli4_hba.sli_intf) != LPFC_SLI_INTF_IF_TYPE_0)) {
/*
* VFI not supported on interface type 0, just do the flogi
* Also continue if the VFI is in use - just use the same one.
*/
if (mboxq->u.mb.mbxStatus &&
(bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
LPFC_SLI_INTF_IF_TYPE_0) &&
mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) {
lpfc_printf_vlog(vport, KERN_ERR,
LOG_MBOX,
"2891 Init VFI mailbox failed 0x%x\n",
@ -2922,6 +2927,7 @@ lpfc_mbx_process_link_up(struct lpfc_hba *phba, struct lpfc_mbx_read_top *la)
{
struct lpfc_vport *vport = phba->pport;
LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox = NULL;
struct Scsi_Host *shost;
int i;
struct lpfc_dmabuf *mp;
int rc;
@ -2945,6 +2951,7 @@ lpfc_mbx_process_link_up(struct lpfc_hba *phba, struct lpfc_mbx_read_top *la)
phba->fc_topology = bf_get(lpfc_mbx_read_top_topology, la);
phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED;
shost = lpfc_shost_from_vport(vport);
if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED;
@ -2956,8 +2963,11 @@ lpfc_mbx_process_link_up(struct lpfc_hba *phba, struct lpfc_mbx_read_top *la)
"1309 Link Up Event npiv not supported in loop "
"topology\n");
/* Get Loop Map information */
if (bf_get(lpfc_mbx_read_top_il, la))
if (bf_get(lpfc_mbx_read_top_il, la)) {
spin_lock_irq(shost->host_lock);
vport->fc_flag |= FC_LBIT;
spin_unlock_irq(shost->host_lock);
}
vport->fc_myDID = bf_get(lpfc_mbx_read_top_alpa_granted, la);
i = la->lilpBde64.tus.f.bdeSize;
@ -3002,11 +3012,13 @@ lpfc_mbx_process_link_up(struct lpfc_hba *phba, struct lpfc_mbx_read_top *la)
} else {
if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) {
if (phba->max_vpi && phba->cfg_enable_npiv &&
(phba->sli_rev == 3))
(phba->sli_rev >= LPFC_SLI_REV3))
phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
}
vport->fc_myDID = phba->fc_pref_DID;
spin_lock_irq(shost->host_lock);
vport->fc_flag |= FC_LBIT;
spin_unlock_irq(shost->host_lock);
}
spin_unlock_irq(&phba->hbalock);
@ -3593,6 +3605,7 @@ lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
MAILBOX_t *mb = &pmb->u.mb;
struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
struct lpfc_nodelist *ndlp;
struct Scsi_Host *shost;
ndlp = (struct lpfc_nodelist *) pmb->context2;
pmb->context1 = NULL;
@ -3638,8 +3651,12 @@ lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
* vport discovery */
if (!(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG))
lpfc_start_fdiscs(phba);
else
else {
shost = lpfc_shost_from_vport(vport);
spin_lock_irq(shost->host_lock);
vport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG ;
spin_unlock_irq(shost->host_lock);
}
lpfc_do_scr_ns_plogi(phba, vport);
}

6
drivers/scsi/lpfc/lpfc_hw.h
View File

@ -349,6 +349,12 @@ struct csp {
* Word 1 Bit 31 in FLOGI response is clean address bit
*/
#define clean_address_bit request_multiple_Nport /* Word 1, bit 31 */
/*
* Word 1 Bit 30 in common service parameter is overloaded.
* Word 1 Bit 30 in FLOGI request is Virtual Fabrics
* Word 1 Bit 30 in PLOGI request is random offset
*/
#define virtual_fabric_support randomOffset /* Word 1, bit 30 */
#ifdef __BIG_ENDIAN_BITFIELD
uint16_t request_multiple_Nport:1; /* FC Word 1, bit 31 */
uint16_t randomOffset:1; /* FC Word 1, bit 30 */

2
drivers/scsi/lpfc/lpfc_hw4.h
View File

@ -1830,6 +1830,8 @@ struct lpfc_mbx_init_vfi {
#define lpfc_init_vfi_hop_count_MASK 0x000000FF
#define lpfc_init_vfi_hop_count_WORD word4
};
#define MBX_VFI_IN_USE 0x9F02
struct lpfc_mbx_reg_vfi {
uint32_t word1;

10
drivers/scsi/lpfc/lpfc_nportdisc.c
View File

@ -782,6 +782,14 @@ lpfc_device_rm_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
return NLP_STE_FREED_NODE;
}
static uint32_t
lpfc_device_recov_unused_node(struct lpfc_vport *vport,
struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
return ndlp->nlp_state;
}
static uint32_t
lpfc_rcv_plogi_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
@ -2147,7 +2155,7 @@ static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT])
lpfc_disc_illegal, /* CMPL_ADISC */
lpfc_disc_illegal, /* CMPL_REG_LOGIN */
lpfc_device_rm_unused_node, /* DEVICE_RM */
lpfc_disc_illegal, /* DEVICE_RECOVERY */
lpfc_device_recov_unused_node, /* DEVICE_RECOVERY */
lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */
lpfc_rcv_prli_plogi_issue, /* RCV_PRLI */

13
drivers/scsi/lpfc/lpfc_scsi.c
View File

@ -2913,8 +2913,8 @@ lpfc_scsi_prep_cmnd(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd,
int_to_scsilun(lpfc_cmd->pCmd->device->lun,
&lpfc_cmd->fcp_cmnd->fcp_lun);
memcpy(&fcp_cmnd->fcpCdb[0], scsi_cmnd->cmnd, 16);
memset(&fcp_cmnd->fcpCdb[0], 0, LPFC_FCP_CDB_LEN);
memcpy(&fcp_cmnd->fcpCdb[0], scsi_cmnd->cmnd, scsi_cmnd->cmd_len);
if (scsi_populate_tag_msg(scsi_cmnd, tag)) {
switch (tag[0]) {
case HEAD_OF_QUEUE_TAG:
@ -3238,6 +3238,15 @@ lpfc_queuecommand_lck(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *))
cmnd->result = err;
goto out_fail_command;
}
/*
* Do not let the mid-layer retry I/O too fast. If an I/O is retried
* without waiting a bit then indicate that the device is busy.
*/
if (cmnd->retries &&
time_before(jiffies, (cmnd->jiffies_at_alloc +
msecs_to_jiffies(LPFC_RETRY_PAUSE *
cmnd->retries))))
return SCSI_MLQUEUE_DEVICE_BUSY;
ndlp = rdata->pnode;
if ((scsi_get_prot_op(cmnd) != SCSI_PROT_NORMAL) &&

5
drivers/scsi/lpfc/lpfc_scsi.h
View File

@ -21,6 +21,7 @@
#include <asm/byteorder.h>
struct lpfc_hba;
#define LPFC_FCP_CDB_LEN 16
#define list_remove_head(list, entry, type, member) \
do { \
@ -102,7 +103,7 @@ struct fcp_cmnd {
#define WRITE_DATA 0x01 /* Bit 0 */
#define READ_DATA 0x02 /* Bit 1 */
uint8_t fcpCdb[16]; /* SRB cdb field is copied here */
uint8_t fcpCdb[LPFC_FCP_CDB_LEN]; /* SRB cdb field is copied here */
uint32_t fcpDl; /* Total transfer length */
};
@ -153,5 +154,5 @@ struct lpfc_scsi_buf {
#define LPFC_SCSI_DMA_EXT_SIZE 264
#define LPFC_BPL_SIZE 1024
#define LPFC_RETRY_PAUSE 300
#define MDAC_DIRECT_CMD 0x22

6
drivers/scsi/lpfc/lpfc_vport.c
View File

@ -774,10 +774,10 @@ lpfc_create_vport_work_array(struct lpfc_hba *phba)
return NULL;
spin_lock_irq(&phba->hbalock);
list_for_each_entry(port_iterator, &phba->port_list, listentry) {
if (port_iterator->load_flag & FC_UNLOADING)
continue;
if (!scsi_host_get(lpfc_shost_from_vport(port_iterator))) {
if (!(port_iterator->load_flag & FC_UNLOADING))
lpfc_printf_vlog(port_iterator, KERN_ERR,
LOG_VPORT,
lpfc_printf_vlog(port_iterator, KERN_ERR, LOG_VPORT,
"1801 Create vport work array FAILED: "
"cannot do scsi_host_get\n");
continue;