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scsi: lpfc: add NVME exchange aborts

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previous code did little more than log a message.

This patch adds abort path support, modeled after the SCSI code paths.
Currently addresses only the initiator path. Target path under
development, but stubbed out.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
James Smart 2017-03-04 09:30:30 -08:00 committed by Martin K. Petersen
parent 3ebd9b4701
commit 318083ad92
8 changed files with 143 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

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

@ -692,6 +692,7 @@ struct lpfc_hba {
* capability
*/
#define HBA_NVME_IOQ_FLUSH 0x80000 /* NVME IO queues flushed. */
#define NVME_XRI_ABORT_EVENT 0x100000
uint32_t fcp_ring_in_use; /* When polling test if intr-hndlr active*/
struct lpfc_dmabuf slim2p;

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

@ -641,6 +641,8 @@ lpfc_work_done(struct lpfc_hba *phba)
lpfc_handle_rrq_active(phba);
if (phba->hba_flag & FCP_XRI_ABORT_EVENT)
lpfc_sli4_fcp_xri_abort_event_proc(phba);
if (phba->hba_flag & NVME_XRI_ABORT_EVENT)
lpfc_sli4_nvme_xri_abort_event_proc(phba);
if (phba->hba_flag & ELS_XRI_ABORT_EVENT)
lpfc_sli4_els_xri_abort_event_proc(phba);
if (phba->hba_flag & ASYNC_EVENT)

7
drivers/scsi/lpfc/lpfc_init.c
View File

@ -5723,6 +5723,8 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
/* Initialize the Abort nvme buffer list used by driver */
spin_lock_init(&phba->sli4_hba.abts_nvme_buf_list_lock);
INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvme_buf_list);
/* Fast-path XRI aborted CQ Event work queue list */
INIT_LIST_HEAD(&phba->sli4_hba.sp_nvme_xri_aborted_work_queue);
}
/* This abort list used by worker thread */
@ -8960,6 +8962,11 @@ lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
/* Pending ELS XRI abort events */
list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
&cqelist);
if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
/* Pending NVME XRI abort events */
list_splice_init(&phba->sli4_hba.sp_nvme_xri_aborted_work_queue,
&cqelist);
}
/* Pending asynnc events */
list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
&cqelist);

64
drivers/scsi/lpfc/lpfc_nvme.c
View File

@ -1277,6 +1277,7 @@ lpfc_nvme_fcp_io_submit(struct nvme_fc_local_port *pnvme_lport,
pnvme_fcreq->private = (void *)lpfc_ncmd;
lpfc_ncmd->nvmeCmd = pnvme_fcreq;
lpfc_ncmd->nrport = rport;
lpfc_ncmd->ndlp = ndlp;
lpfc_ncmd->start_time = jiffies;
lpfc_nvme_prep_io_cmd(vport, lpfc_ncmd, ndlp);
@ -1812,10 +1813,10 @@ lpfc_post_nvme_sgl_list(struct lpfc_hba *phba,
pdma_phys_sgl1, cur_xritag);
if (status) {
/* failure, put on abort nvme list */
lpfc_ncmd->exch_busy = 1;
lpfc_ncmd->flags |= LPFC_SBUF_XBUSY;
} else {
/* success, put on NVME buffer list */
lpfc_ncmd->exch_busy = 0;
lpfc_ncmd->flags &= ~LPFC_SBUF_XBUSY;
lpfc_ncmd->status = IOSTAT_SUCCESS;
num_posted++;
}
@ -1845,10 +1846,10 @@ lpfc_post_nvme_sgl_list(struct lpfc_hba *phba,
struct lpfc_nvme_buf, list);
if (status) {
/* failure, put on abort nvme list */
lpfc_ncmd->exch_busy = 1;
lpfc_ncmd->flags |= LPFC_SBUF_XBUSY;
} else {
/* success, put on NVME buffer list */
lpfc_ncmd->exch_busy = 0;
lpfc_ncmd->flags &= ~LPFC_SBUF_XBUSY;
lpfc_ncmd->status = IOSTAT_SUCCESS;
num_posted++;
}
@ -2090,7 +2091,7 @@ lpfc_release_nvme_buf(struct lpfc_hba *phba, struct lpfc_nvme_buf *lpfc_ncmd)
unsigned long iflag = 0;
lpfc_ncmd->nonsg_phys = 0;
if (lpfc_ncmd->exch_busy) {
if (lpfc_ncmd->flags & LPFC_SBUF_XBUSY) {
spin_lock_irqsave(&phba->sli4_hba.abts_nvme_buf_list_lock,
iflag);
lpfc_ncmd->nvmeCmd = NULL;
@ -2453,3 +2454,56 @@ lpfc_nvme_unregister_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
"6168: State error: lport %p, rport%p FCID x%06x\n",
vport->localport, ndlp->rport, ndlp->nlp_DID);
}
/**
* lpfc_sli4_nvme_xri_aborted - Fast-path process of NVME xri abort
* @phba: pointer to lpfc hba data structure.
* @axri: pointer to the fcp xri abort wcqe structure.
*
* This routine is invoked by the worker thread to process a SLI4 fast-path
* FCP aborted xri.
**/
void
lpfc_sli4_nvme_xri_aborted(struct lpfc_hba *phba,
struct sli4_wcqe_xri_aborted *axri)
{
uint16_t xri = bf_get(lpfc_wcqe_xa_xri, axri);
uint16_t rxid = bf_get(lpfc_wcqe_xa_remote_xid, axri);
struct lpfc_nvme_buf *lpfc_ncmd, *next_lpfc_ncmd;
struct lpfc_nodelist *ndlp;
unsigned long iflag = 0;
int rrq_empty = 0;
if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME))
return;
spin_lock_irqsave(&phba->hbalock, iflag);
spin_lock(&phba->sli4_hba.abts_nvme_buf_list_lock);
list_for_each_entry_safe(lpfc_ncmd, next_lpfc_ncmd,
&phba->sli4_hba.lpfc_abts_nvme_buf_list,
list) {
if (lpfc_ncmd->cur_iocbq.sli4_xritag == xri) {
list_del(&lpfc_ncmd->list);
lpfc_ncmd->flags &= ~LPFC_SBUF_XBUSY;
lpfc_ncmd->status = IOSTAT_SUCCESS;
spin_unlock(
&phba->sli4_hba.abts_nvme_buf_list_lock);
rrq_empty = list_empty(&phba->active_rrq_list);
spin_unlock_irqrestore(&phba->hbalock, iflag);
ndlp = lpfc_ncmd->ndlp;
if (ndlp) {
lpfc_set_rrq_active(
phba, ndlp,
lpfc_ncmd->cur_iocbq.sli4_lxritag,
rxid, 1);
lpfc_sli4_abts_err_handler(phba, ndlp, axri);
}
lpfc_release_nvme_buf(phba, lpfc_ncmd);
if (rrq_empty)
lpfc_worker_wake_up(phba);
return;
}
}
spin_unlock(&phba->sli4_hba.abts_nvme_buf_list_lock);
spin_unlock_irqrestore(&phba->hbalock, iflag);
}

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

@ -57,6 +57,7 @@ struct lpfc_nvme_buf {
struct list_head list;
struct nvmefc_fcp_req *nvmeCmd;
struct lpfc_nvme_rport *nrport;
struct lpfc_nodelist *ndlp;
uint32_t timeout;

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

@ -734,6 +734,21 @@ lpfc_nvmet_update_targetport(struct lpfc_hba *phba)
return 0;
}
/**
* lpfc_sli4_nvmet_xri_aborted - Fast-path process of nvmet xri abort
* @phba: pointer to lpfc hba data structure.
* @axri: pointer to the nvmet xri abort wcqe structure.
*
* This routine is invoked by the worker thread to process a SLI4 fast-path
* NVMET aborted xri.
**/
void
lpfc_sli4_nvmet_xri_aborted(struct lpfc_hba *phba,
struct sli4_wcqe_xri_aborted *axri)
{
/* TODO: work in progress */
}
void
lpfc_nvmet_destroy_targetport(struct lpfc_hba *phba)
{
@ -958,7 +973,7 @@ lpfc_nvmet_unsol_fcp_buffer(struct lpfc_hba *phba,
atomic_inc(&tgtp->rcv_fcp_cmd_drop);
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
"6159 FCP Drop IO x%x: nvmet_fc_rcv_fcp_req x%x\n",
"6159 FCP Drop IO x%x: err x%x\n",
ctxp->oxid, rc);
dropit:
lpfc_nvmeio_data(phba, "NVMET FCP DROP: xri x%x sz %d from %06x\n",
@ -1683,8 +1698,8 @@ lpfc_nvmet_unsol_issue_abort(struct lpfc_hba *phba,
struct lpfc_nodelist *ndlp;
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
"6067 %s: Entrypoint: sid %x xri %x\n", __func__,
sid, xri);
"6067 Abort: sid %x xri x%x/x%x\n",
sid, xri, ctxp->wqeq->sli4_xritag);
tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;

51
drivers/scsi/lpfc/lpfc_sli.c
View File

@ -12212,6 +12212,41 @@ void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba *phba)
}
}
/**
* lpfc_sli4_nvme_xri_abort_event_proc - Process nvme xri abort event
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked by the worker thread to process all the pending
* SLI4 NVME abort XRI events.
**/
void lpfc_sli4_nvme_xri_abort_event_proc(struct lpfc_hba *phba)
{
struct lpfc_cq_event *cq_event;
/* First, declare the fcp xri abort event has been handled */
spin_lock_irq(&phba->hbalock);
phba->hba_flag &= ~NVME_XRI_ABORT_EVENT;
spin_unlock_irq(&phba->hbalock);
/* Now, handle all the fcp xri abort events */
while (!list_empty(&phba->sli4_hba.sp_nvme_xri_aborted_work_queue)) {
/* Get the first event from the head of the event queue */
spin_lock_irq(&phba->hbalock);
list_remove_head(&phba->sli4_hba.sp_nvme_xri_aborted_work_queue,
cq_event, struct lpfc_cq_event, list);
spin_unlock_irq(&phba->hbalock);
/* Notify aborted XRI for NVME work queue */
if (phba->nvmet_support) {
lpfc_sli4_nvmet_xri_aborted(phba,
&cq_event->cqe.wcqe_axri);
} else {
lpfc_sli4_nvme_xri_aborted(phba,
&cq_event->cqe.wcqe_axri);
}
/* Free the event processed back to the free pool */
lpfc_sli4_cq_event_release(phba, cq_event);
}
}
/**
* lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event
* @phba: pointer to lpfc hba data structure.
@ -12709,10 +12744,22 @@ lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba *phba,
spin_unlock_irqrestore(&phba->hbalock, iflags);
workposted = true;
break;
case LPFC_NVME:
spin_lock_irqsave(&phba->hbalock, iflags);
list_add_tail(&cq_event->list,
&phba->sli4_hba.sp_nvme_xri_aborted_work_queue);
/* Set the nvme xri abort event flag */
phba->hba_flag |= NVME_XRI_ABORT_EVENT;
spin_unlock_irqrestore(&phba->hbalock, iflags);
workposted = true;
break;
default:
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
"0603 Invalid work queue CQE subtype (x%x)\n",
cq->subtype);
"0603 Invalid CQ subtype %d: "
"%08x %08x %08x %08x\n",
cq->subtype, wcqe->word0, wcqe->parameter,
wcqe->word2, wcqe->word3);
lpfc_sli4_cq_event_release(phba, cq_event);
workposted = false;
break;
}

6
drivers/scsi/lpfc/lpfc_sli4.h
View File

@ -642,6 +642,7 @@ struct lpfc_sli4_hba {
struct list_head sp_asynce_work_queue;
struct list_head sp_fcp_xri_aborted_work_queue;
struct list_head sp_els_xri_aborted_work_queue;
struct list_head sp_nvme_xri_aborted_work_queue;
struct list_head sp_unsol_work_queue;
struct lpfc_sli4_link link_state;
struct lpfc_sli4_lnk_info lnk_info;
@ -794,9 +795,14 @@ void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *);
int lpfc_sli4_resume_rpi(struct lpfc_nodelist *,
void (*)(struct lpfc_hba *, LPFC_MBOXQ_t *), void *);
void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba *);
void lpfc_sli4_nvme_xri_abort_event_proc(struct lpfc_hba *phba);
void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *);
void lpfc_sli4_fcp_xri_aborted(struct lpfc_hba *,
struct sli4_wcqe_xri_aborted *);
void lpfc_sli4_nvme_xri_aborted(struct lpfc_hba *phba,
struct sli4_wcqe_xri_aborted *axri);
void lpfc_sli4_nvmet_xri_aborted(struct lpfc_hba *phba,
struct sli4_wcqe_xri_aborted *axri);
void lpfc_sli4_els_xri_aborted(struct lpfc_hba *,
struct sli4_wcqe_xri_aborted *);
void lpfc_sli4_vport_delete_els_xri_aborted(struct lpfc_vport *);