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scsi: lpfc: NVME Initiator: bind to nvme_fc api 

NVME Initiator: Tie in to NVME Fabrics nvme_fc LLDD initiator api

Adds the routines to:
- register and deregister the FC port as a nvme-fc initiator localport
- register and deregister remote FC ports as a nvme-fc remoteport
- binding of nvme queues to adapter WQs
- send/perform NVME LS's
- send/perform NVME FCP initiator io operations

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
James Smart 2017-02-12 13:52:32 -08:00 committed by Martin K. Petersen
parent a0f2d3ef37
commit 01649561a8
13 changed files with 2411 additions and 38 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/scsi/lpfc/Makefile
View File

@ -28,6 +28,7 @@ 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 \
lpfc_vport.o lpfc_debugfs.o lpfc_bsg.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 lpfc_vport.o lpfc_debugfs.o lpfc_bsg.o \
lpfc_nvme.o

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

@ -123,6 +123,11 @@ struct perf_prof {
uint16_t wqidx[40];
};
/*
* Provide for FC4 TYPE x28 - NVME. The
* bit mask for FCP and NVME is 0x8 identically
* because they are 32 bit positions distance.
*/
#define LPFC_FC4_TYPE_BITMASK 0x00000100
/* Provide DMA memory definitions the driver uses per port instance. */

10
drivers/scsi/lpfc/lpfc_crtn.h
View File

@ -518,4 +518,14 @@ int lpfc_sli4_dump_page_a0(struct lpfc_hba *phba, struct lpfcMboxq *mbox);
void lpfc_mbx_cmpl_rdp_page_a0(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb);
/* NVME interfaces. */
void lpfc_nvme_unregister_port(struct lpfc_vport *vport,
struct lpfc_nodelist *ndlp);
int lpfc_nvme_register_port(struct lpfc_vport *vport,
struct lpfc_nodelist *ndlp);
int lpfc_nvme_create_localport(struct lpfc_vport *vport);
void lpfc_nvme_destroy_localport(struct lpfc_vport *vport);
void lpfc_nvme_update_localport(struct lpfc_vport *vport);
void lpfc_nvme_mod_param_dep(struct lpfc_hba *phba);
void lpfc_nvme_abort_fcreq_cmpl(struct lpfc_hba *phba,
struct lpfc_iocbq *cmdiocb,
struct lpfc_wcqe_complete *abts_cmpl);

2
drivers/scsi/lpfc/lpfc_ct.c
View File

@ -1412,7 +1412,7 @@ lpfc_ns_cmd(struct lpfc_vport *vport, int cmdcode,
if (((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
(phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) &&
(context == FC_TYPE_NVME)) {
/* todo: init: revise localport nvme attributes */
lpfc_nvme_update_localport(vport);
CtReq->un.rff.type_code = context;
} else if (((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||

4
drivers/scsi/lpfc/lpfc_els.c
View File

@ -2618,7 +2618,9 @@ lpfc_cmpl_els_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
!(vport->fc_flag & FC_PT2PT_PLOGI)) {
phba->pport->fc_myDID = 0;
/* todo: init: revise localport nvme attributes */
if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
(phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME))
lpfc_nvme_update_localport(phba->pport);
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (mbox) {

15
drivers/scsi/lpfc/lpfc_hbadisc.c
View File

@ -909,7 +909,9 @@ lpfc_linkdown(struct lpfc_hba *phba)
vports[i]->fc_myDID = 0;
/* todo: init: revise localport nvme attributes */
if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
(phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME))
lpfc_nvme_update_localport(vports[i]);
}
}
lpfc_destroy_vport_work_array(phba, vports);
@ -3580,7 +3582,9 @@ lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
spin_unlock_irq(shost->host_lock);
vport->fc_myDID = 0;
/* todo: init: revise localport nvme attributes */
if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
(phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME))
lpfc_nvme_update_localport(vport);
goto out;
}
@ -3950,7 +3954,8 @@ lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
(phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME))
lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, FC_TYPE_NVME);
lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0,
FC_TYPE_NVME);
/* Issue SCR just before NameServer GID_FT Query */
lpfc_issue_els_scr(vport, SCR_DID, 0);
@ -4144,7 +4149,7 @@ lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
((ndlp->nlp_fc4_type & NLP_FC4_NVME) ||
(ndlp->nlp_DID == Fabric_DID))) {
vport->phba->nport_event_cnt++;
/* todo: init: unregister rport from nvme */
lpfc_nvme_unregister_port(vport, ndlp);
}
}
@ -4169,7 +4174,7 @@ lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
* the register.
*/
vport->phba->nport_event_cnt++;
/* todo: init: register rport with nvme */
lpfc_nvme_register_port(vport, ndlp);
}
}
}

39
drivers/scsi/lpfc/lpfc_init.c
View File

@ -3128,7 +3128,6 @@ static void
lpfc_scsi_free(struct lpfc_hba *phba)
{
struct lpfc_scsi_buf *sb, *sb_next;
struct lpfc_iocbq *io, *io_next;
if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
return;
@ -3158,14 +3157,6 @@ lpfc_scsi_free(struct lpfc_hba *phba)
phba->total_scsi_bufs--;
}
spin_unlock(&phba->scsi_buf_list_get_lock);
/* 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->hbalock);
}
/**
@ -3180,7 +3171,6 @@ static void
lpfc_nvme_free(struct lpfc_hba *phba)
{
struct lpfc_nvme_buf *lpfc_ncmd, *lpfc_ncmd_next;
struct lpfc_iocbq *io, *io_next;
if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME))
return;
@ -3209,14 +3199,6 @@ lpfc_nvme_free(struct lpfc_hba *phba)
phba->total_nvme_bufs--;
}
spin_unlock(&phba->nvme_buf_list_get_lock);
/* 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->hbalock);
}
/**
@ -10685,7 +10667,23 @@ lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
/* Perform post initialization setup */
lpfc_post_init_setup(phba);
/* todo: init: register port with nvme */
/* NVME support in FW earlier in the driver load corrects the
* FC4 type making a check for nvme_support unnecessary.
*/
if ((phba->nvmet_support == 0) &&
(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) {
/* Create NVME binding with nvme_fc_transport. This
* ensures the vport is initialized.
*/
error = lpfc_nvme_create_localport(vport);
if (error) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"6004 NVME registration failed, "
"error x%x\n",
error);
goto out_disable_intr;
}
}
/* check for firmware upgrade or downgrade */
if (phba->cfg_request_firmware_upgrade)
@ -10761,8 +10759,8 @@ lpfc_pci_remove_one_s4(struct pci_dev *pdev)
/* Perform ndlp cleanup on the physical port. The nvme localport
* is destroyed after to ensure all rports are io-disabled.
*/
lpfc_nvme_destroy_localport(vport);
lpfc_cleanup(vport);
/* todo: init: unregister port with nvme */
/*
* Bring down the SLI Layer. This step disables all interrupts,
@ -10781,6 +10779,7 @@ lpfc_pci_remove_one_s4(struct pci_dev *pdev)
*/
lpfc_scsi_free(phba);
lpfc_nvme_free(phba);
lpfc_free_iocb_list(phba);
lpfc_sli4_driver_resource_unset(phba);

4
drivers/scsi/lpfc/lpfc_nportdisc.c
View File

@ -1655,9 +1655,7 @@ lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport,
(phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) {
ndlp->nlp_fc4_type |= NLP_FC4_NVME;
/* We need to update the localport also */
/* todo: init: revise localport nvme
* attributes
*/
lpfc_nvme_update_localport(vport);
}
} else if (ndlp->nlp_fc4_type == 0) {

2319
drivers/scsi/lpfc/lpfc_nvme.c Normal file
View File

File diff suppressed because it is too large Load Diff

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

@ -29,6 +29,12 @@
#define LPFC_NVME_ERSP_LEN 0x20
struct lpfc_nvme_qhandle {
uint32_t index; /* WQ index to use */
uint32_t qidx; /* queue index passed to create */
uint32_t cpu_id; /* current cpu id at time of create */
};
/* Declare nvme-based local and remote port definitions. */
struct lpfc_nvme_lport {
struct lpfc_vport *vport;

21
drivers/scsi/lpfc/lpfc_sli.c
View File

@ -6795,6 +6795,22 @@ lpfc_sli4_hba_setup(struct lpfc_hba *phba)
}
}
if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) &&
(phba->nvmet_support == 0)) {
/* register the allocated nvme sgl pool to the port */
rc = lpfc_repost_nvme_sgl_list(phba);
if (unlikely(rc)) {
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
"6116 Error %d during nvme sgl post "
"operation\n", rc);
/* Some NVME buffers were moved to abort nvme list */
/* A pci function reset will repost them */
rc = -ENODEV;
goto out_destroy_queue;
}
}
/* Post the rpi header region to the device. */
rc = lpfc_sli4_post_all_rpi_hdrs(phba);
if (unlikely(rc)) {
@ -10492,10 +10508,7 @@ lpfc_sli4_abort_nvme_io(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
/* ABTS WQE must go to the same WQ as the WQE to be aborted */
abtsiocbp->iocb_flag |= LPFC_IO_NVME;
abtsiocbp->vport = vport;
/* todo: assign wqe_cmpl to lpfc_nvme_abort_fcreq_cmpl
* subsequent patch will add routine. For now, just skip assignment
* as won't ever be called.
*/
abtsiocbp->wqe_cmpl = lpfc_nvme_abort_fcreq_cmpl;
retval = lpfc_sli4_issue_wqe(phba, LPFC_FCP_RING, abtsiocbp);
if (retval == IOCB_ERROR) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME,

1
drivers/scsi/lpfc/lpfc_sli4.h
View File

@ -753,6 +753,7 @@ int lpfc_sli4_queue_setup(struct lpfc_hba *);
void lpfc_sli4_queue_unset(struct lpfc_hba *);
int lpfc_sli4_post_sgl(struct lpfc_hba *, dma_addr_t, dma_addr_t, uint16_t);
int lpfc_sli4_repost_scsi_sgl_list(struct lpfc_hba *);
int lpfc_repost_nvme_sgl_list(struct lpfc_hba *phba);
uint16_t lpfc_sli4_next_xritag(struct lpfc_hba *);
void lpfc_sli4_free_xri(struct lpfc_hba *, int);
int lpfc_sli4_post_async_mbox(struct lpfc_hba *);

16
drivers/scsi/lpfc/lpfc_vport.c
View File

@ -403,7 +403,21 @@ lpfc_vport_create(struct fc_vport *fc_vport, bool disable)
vport->fdmi_port_mask = phba->pport->fdmi_port_mask;
}
/* todo: init: register port with nvme */
if ((phba->nvmet_support == 0) &&
((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
(phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME))) {
/* Create NVME binding with nvme_fc_transport. This
* ensures the vport is initialized.
*/
rc = lpfc_nvme_create_localport(vport);
if (rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"6003 %s status x%x\n",
"NVME registration failed, ",
rc);
goto error_out;
}
}
/*
* In SLI4, the vpi must be activated before it can be used