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scsi: lpfc: NVME Target: bind to nvmet_fc api

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NVME Target: Tie in to NVME Fabrics nvmet_fc LLDD target api

Adds the routines to:
- register and deregister the FC port as a nvmet-fc targetport
- binding of nvme queues to adapter WQs
- receipt and passing of NVME LS's to transport, sending transport response
- receipt of NVME FCP CMD IUs, processing FCP target io data transmission
  commands; transmission of FCP io response
- Abort operations for tgt io exchanges

[mkp: fixed space at end of file warning]

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 13:52:37 -08:00
committed by Martin K. Petersen
parent 8c258641e0
commit d613b6a7aa
9 changed files with 1752 additions and 15 deletions
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45
drivers/scsi/lpfc/lpfc_mem.c
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@@ -763,3 +763,48 @@ lpfc_in_buf_free(struct lpfc_hba *phba, struct lpfc_dmabuf *mp)
}
return;
}
/**
* lpfc_rq_buf_free - Free a RQ DMA buffer
* @phba: HBA buffer is associated with
* @mp: Buffer to free
*
* Description: Frees the given DMA buffer in the appropriate way given by
* reposting it to its associated RQ so it can be reused.
*
* Notes: Takes phba->hbalock. Can be called with or without other locks held.
*
* Returns: None
**/
void
lpfc_rq_buf_free(struct lpfc_hba *phba, struct lpfc_dmabuf *mp)
{
struct lpfc_rqb *rqbp;
struct lpfc_rqe hrqe;
struct lpfc_rqe drqe;
struct rqb_dmabuf *rqb_entry;
unsigned long flags;
int rc;
if (!mp)
return;
rqb_entry = container_of(mp, struct rqb_dmabuf, hbuf);
rqbp = rqb_entry->hrq->rqbp;
spin_lock_irqsave(&phba->hbalock, flags);
list_del(&rqb_entry->hbuf.list);
hrqe.address_lo = putPaddrLow(rqb_entry->hbuf.phys);
hrqe.address_hi = putPaddrHigh(rqb_entry->hbuf.phys);
drqe.address_lo = putPaddrLow(rqb_entry->dbuf.phys);
drqe.address_hi = putPaddrHigh(rqb_entry->dbuf.phys);
rc = lpfc_sli4_rq_put(rqb_entry->hrq, rqb_entry->drq, &hrqe, &drqe);
if (rc < 0) {
(rqbp->rqb_free_buffer)(phba, rqb_entry);
} else {
list_add_tail(&rqb_entry->hbuf.list, &rqbp->rqb_buffer_list);
rqbp->buffer_count++;
}
spin_unlock_irqrestore(&phba->hbalock, flags);
}